During electron transport, protons are pumped out of the mitochondrion at each of the major sites except for

During electron transport, protons are pumped out of the mitochondrion

1.	During electron transport, protons are pumped out of the mitochondrion at each of the major sites except for
A.	<i>complex I</i>
B.	<i>complex II</i>
C.	<i>complex III</i>
D.	<i>complex IV</i>
Answer» C. <i>complex III</i>