Manuscript speeches are written out completely

Jai wrote the following sentence in his article, "The man's legs were hurt, he could not walk anymore." What error did Jai make in this sentence?

a) Comma splice b) Usage of comma between subject and verb c) Comma used to set off items d) Comma used to separate items

Edith argues that animals have rights equal to those of human beings, while Nina says animals should serve human interests. The central issue in this conflict is one of

A. policies. B. values. C. ends. D. issues. E. solutions.