Venus Orbits the Sun in 225 Days

Multiple Choice

Venus orbits the Sun in 225 days. How long does it take to rotate on its axis?

A) 225 days, so it keeps the same face toward the Sun
B) 24 hours, 36 minutes, very similar to Earth and Mars
C) 243 days, even though the Earth's tidal pull is not involved
D) 36 days, for reasons unknown
E) 450 days, exactly at 2:1 spin-orbit resonance