Problem with Media Studies question. What is this question actually asking?

Q. Im looking at some advert and the question is...

Describe precisely what you see in the advert. Remember that this is the denotation of the advert.

Can someone put this simpler for me?

A. Denotation means: the explicit and direct meaning of what you are seeing. In other words, the objective meaning.
The opposite would be the ad's connotation. That word involves emotional aspects of the ad and suggestions that the ad might hint at rather than explicitly stating.
Just describe the ad as objectively as you can in its surface presentation, and don't try to "read between the lines" or be too arty about possible hidden meanings.
You are being asked for a description and NOT an interpretation