Each of the following is true regarding bacterial anoxygenic photosynthesis except

A)O₂ is released.
B)Hydrogen sulfide or thiosulfate can act as electron donors.
C)Bacteriochlorophyll b absorbs light energy in the far red range of the light spectrum.
D)Electron flow is coupled to unidirectional proton pumping across the bacterial plasma membrane.
E)Following electron flow,the electron is transferred from cytochrome c to bacteriochlorophyll b .