Guido and Hal Want to Rescind Their Contract Under Which

Multiple Choice

Guido and Hal want to rescind their contract under which Guido sold Hal a mountain bike for $250. To rescind the contract

A) Guido must return the $250 and Hal must return the bike.
B) Guido must return the $250 only.
C) Hal must return the bike only.
D) the parties can keep the "benefits" of their bargain.