Studies with the Patient Known for Years as H

Studies with the patient known for years as H.M. and with amnesia patients who have sustained similar brain damage seem to suggest that:

A) the hippocampus is less crucial in the formation of new implicit memories, such as procedural memories, than it is to the formation of new explicit memories.
B) the hippocampus plays no role in the formation of new episodic memories.
C) long-term memories are stored in the hippocampus.
D) the hippocampus is less crucial in the formation of new explicit memories, such as semantic memories, than it is to the formation of new implicit memories.