Which of the following can be found in the reaction centre of a photosystem?
A) a primary electron acceptor, a large number of proteins, and many chlorophyll a molecules
B) a primary electron acceptor, a small number of proteins, and many chlorophyll a molecules
C) a primary electron acceptor, a large number of proteins, and two chlorophyll a molecules
D) a primary electron acceptor, a small number of proteins, and two chlorophyll a molecules