Which of the Following Statements Best Characterizes ATP Synthase

Which of the following statements best characterizes ATP synthase?

A) it couples ATP export from the mitochondrial matrix to ATP synthesis
B) it is soluble protein found in the mitochondrial matrix
C) its catalytic function is to synthesize ATP in a reaction driven by a chemiosmotic potential
D) oligomycin binds to ATP synthase, directly preventing ATP export
E) the low H+ ion concentration outside mitochondria establishes an electrochemical gradient that drives ATP synthesis