What is the relationship between Mercury's rotation about its axis (measured relative to the ...

What is the relationship between Mercury's rotation about its axis (measured relative to the distant stars) and its revolution around the Sun? (See Fig. 7-8 and the table accompanying Fig. 7-1, Comins and Kaufmann, Discovering the Universe, 7th Ed.)
A)   Mercury rotates once for every three revolutions around the Sun.
B)   Mercury rotates exactly once during each revolution around the Sun.
C)   Mercury rotates approximately 88 times during each revolution around the Sun.
D)   Mercury rotates three times for every two revolutions around the Sun.