Which of the following explains how a reaction center is excited?
A) a reaction center can only be excited by direct absorption of a photon of light
B) excitation can occur by any of the antenna pigments in direct contact with the reaction center
C) excitation occurs when an antenna fluoresces so that the photon of light can be captured by a reaction center
D) any antenna of the light harvesting complex can transfer an electron to the reaction center by exciton transfer
E) transfer of heat energy from antenna to reaction center allows for excitation
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