Can someone help me on these two questions

Translate they will know into spanish

When could you attach the direct object pronoun to an infinitive verb? a: when an infinitive verb follows a conjugated verb. b: when an infinitive verb ends in a question. c: when a stem-changing verb ends in a question. d: when a stem-changing verb follows a conjugated verb.

Question 6 pancho villa is compared to england's robin hood. true false