Cross Platform Advertising

Q. What is cross-platform advertising? Give a definition using detailed examples (300 words) 
Cross-platform advertising (also called cross-media) refers to advertising through different media platforms such as tv, mobile, etc. It increases the chances of reaching a costumer so that they buy a product. Throughout this essay, I will be exploring cross-platform advertising with the help of examples in order to demonstrate how it is used to target audiences effectively. Cross-media is often used by businesses with decent budges, as it's the smartest option in order to sell your product because of its efficacity.
One of the media forms that can be used is print e.g. in the bus, tube, etc. These are the printed adverts that one can see if they take public transport, which is most people's option. It's an optional choice, as several people have to move through such means, to get to work, school and other commitments, meaning they're really likely to come across the printed adverts throughout their journey.
Another media form is TV. The adverts play while there's a break or two in between programs, indicating viewers have to stick around, waiting for the program to resume, having to watch some or all of the commercials.
A type of media similar to TV is the radio. Here, the adverts play between music, and instead of visual they solely rely on sound. However, marketing consultant Mike Brassil claims "radio advertising is relatively cheap compared to print or television" which makes it an attractive choice to businesses that want to get their product out there.
Social media is one of the modern media platforms, which also contain ads. These run whilst you're watching a Snapchat or Instagram story, as well as whilst you're scrolling through your timeline. It effectively places itself in a platform that's widely used and can be used anywhere, unlike print, TV and radio. It stops the viewer and can draw them in if they're curious about the product that's being offered.
Oftentimes, advertising is suited to each demographic, as there are ads for every type of audience. This helps build the success of an advert campaign as it will reach people that are likely to buy the product. An interested audience will make cross-platform advertising more successful.
On the other hand, cross-platform advertising could also have the opposite effect, and because it is constantly advertised everywhere, the audience could be annoyed at the repetitive nature of it. It could also have a negative effect as adverts among media forms such as stories, or TV programs interrupt the viewer whilst they're doing something.
In conclusion, I think cross-platform advertising is effective as it is spread throughout various media platforms, meaning it will constantly chase the audience, and make the advert memorable. However, they could also have a negative effect and annoy the audience.