Answer:
B). Ad recall
Step-by-step explanation:
The 'ad recall' feature of the advertisement is being displayed in Benny's survey group as it aims to evaluate the number of people who remembered the latest advertisement of his company within the two days of the display. The survey primarily aims to check how memorable was their advertisement to the people to check if the advertisement was effective enough and able to create desired impact or not. Thus, option B is the correct answer.