According to shopping ads policies, what would cause the disapproval of individual items or an entire Merchant Center account?

Q. According to shopping ads policies, what would cause the disapproval of individual items or an entire Merchant Center account?

A. Products with an availability attribute of out of stock

B. A product URL that links directly to only one relevant item

C. Unsecured checkout or a missing refund policy

D. Sale of gambling-related products such as poker chips

Correct Answer is:

C. Unsecured checkout or a missing refund policy