31.

Answer and Explanation

Your Answer is

Correct Answer is B

Explanation

The following attributive clause explains the company, which means "its slogan is...", the possessive case uses whose, so B is correct.

Item A/C: Make the attributive clause have two verbs, and the semantics are wrong.

Item D: that guides the attributive clause, which needs to be the subject or object in the clause, so it is wrong.