Question

is this an ad or not?
10 ways to succeed in college,
according to people who went to
college
ad
not

Explanation:

The content is an article about college success tips from the LinkedIn community, not promoting a product/service. Ads typically aim to sell/promote, but this shares advice. Also, the "AD" label's area (pink) and "NOT" (blue) – the content is informational, not an ad. So it's "NOT" an ad.

Answer:

The option "NOT" (the blue area with the diamond and "NOT" text)