Determine Whether the Study Involves Selection Bias, Participation Bias, Both

Determine whether the study involves selection bias, participation bias, both selection bias and participation bias, orneither.
-You are interested in the degree of satisfaction amongst customers at your video store. For one week, you hand a customer satisfaction questionnaire to every customer who comes into the store
And ask them to fill it out and place it in a box after they check out.

A) Participation Bias
B) Participation Bias and Selection Bias
C) Selection Bias
D) No Bias