Use the Accompanying Figure to Answer the Question(s) Below

Multiple Choice

Use the accompanying figure to answer the question(s) below.
-The proteins of the electron transport chain active in the light-dependent reactions ________.

A) are membrane proteins present in the thylakoid
B) are free proteins present in the thylakoid lumen
C) are considered to be part of the reaction center of photosystem I
D) absorb the same wavelengths of light as their associated chlorophylls