Answer:
The correct answer is the third option: a concern that an advertisement will run near offensive material, embarrassing an advertiser and/or degrading their products or brands.
Step-by-step explanation:
To begin with, the concept of ''content adjancency'' is known as the problem that many companies nowadays faces due to the new social networks that keep growing evey year. It consists in the situation where an advertiser or firm's concern is with the fact that if the advertisement will run near offensive material such that the company's name will suffer disadvantages due to the fact that their advertisement will be in those places and people might tend to relate them.