Question

how did tiktok and other mobile sites change the way advertisers promoted movies and television shows?
they reverted to more traditional ways of promoting movies through radio and tv.
they had to create short trailers and clips to fit the format of these social media sites.
they were no longer able to promote movies and shows through social media sites.
they were forced to use face - to - face exhibition/theater style promotions.

Explanation:

TikTok and similar mobile - social media platforms have short - form content formats. Advertisers adapted by creating short trailers and clips to match these formats for effective promotion.

Answer:

B. They had to create short trailers and clips to fit the format of these social media sites.