In mitochondrial ETC, cytochrome c is a $\mathrm{\_\_A\_\_}$protein attached to the $\mathrm{\_\_B\_\_}$surface of inner membrane.

	A	B
1.	Small	Outer
2.	Large	Outer
3.	Small	Inner
4.	Large	Inner

• A

  1

• B

  2

• C

  3

• D

  4