P680+ is said to be the strongest biological oxidizing agent. Why?
A. it is the receptor for the most excited electron in either photosystem
B. it is the molecule that transfers electrons to Pq of the electron transport chain
C. NADP reductase will then catalyze the shift of the electron from Fd to NADP+ to reduce it to NADPH
D. this molecule results from the transfer of an electron to the primary electron acceptor of photosystem II and strongly attracts another electron
E. this molecule is found far more frequently among bacteria as well as plants and plantlike protists
Answer: D