Answer:
The answer is B.
Step-by-step explanation:
To capture light energy energy from photons (from light) should be passed to excite and pump an electron. Main issue is single photon doesn't contain enough energy pump the electron in one step. As a result they use two different photosystems to elevate the electrons into higher energy levels using two photons (see figure). After that excited electron passed to the primary electron acceptor, This electron acceptor passes the electron via electron transport chain to convert NADP+ into NADPH to store electrons' energy.