Indicate Whether Each of the Following Statements Better Describes ATP

Short Answer

Indicate whether each of the following statements better describes ATP production in chloroplasts (C) or in mitochondria (M). Your answer would be a four-letter string composed of letters C and M only, e.g. MCMM.
( ) The electrochemical gradient that drives ATP production is dominated by the electrical component.
( ) It involves a significant pH difference across the membrane.
( ) The ATP synthase molecules form dimers.
( ) The ATP synthase molecules are distributed randomly in flat membrane regions.