Which sentence is correct?

What did mark twain contribute to the history of the novel? select all that apply.

Which sentence features a correctly identified compound pronoun in a prepositional phrase? a)she and i will be at the park on tuesday, waiting for mariah and them. b)the gift grandmother brought was for me and him. c)everyone is so sure that he'll be late after traveling with peter and maria. d)after they visit the grand canyon, tianna and mom are going to a spa.

Experiments were conducted to try to teach chimpanzees sign language