Use the Following to Answer the Questions Below

Multiple Choice

Use the following to answer the questions below:
For each of the ETC electron carriers, select the number of ETC protein complexes with which it is associated using the response list. Responses may be used more than once or need not be used at all.

-FADH₂

A) one protein complex
B) two protein complexes
C) three protein complexes
D) four protein complexes