PLZ help
Read the passage from The American Plague.

Finally, Washington turned to Attorney General Edmund Randolph. As the nation's chief law official and legal counsel of the United States, Randolph was someone whose opinion held great weight. In a delicately worded letter, Randolph told Washington that no, the president could not move Congress, even in an emergency. "It seems to be unconstitutional," Randolph noted.

Which sentence contains the central idea of the passage?

A. Finally, Washington turned to Attorney General Edmund Randolph.
B. As the nation's chief law official and legal counsel of the United States, Randolph was someone whose opinion held great weight.
C. In a delicately worded letter, Randolph told Washington that no, the president could not move Congress, even in an emergency.
D."It seems to be unconstitutional," Randolph noted.