The reaction-center chlorophyll of photosystem I is known as P700 because
A. there are 700 chlorophyll molecules in the center
B. this pigment is best at absorbing light with a wavelength of 700 nm
C. there are 700 photosystem I components to each chloroplast
D. it absorbs 700 photons per microsecond
E. the plastoquinone reflects light with a wavelength of 700 nm
Answer: B