On January 1, 2010, Rob pays $92,550 for corporate bonds that have a $100,000 face value. The bonds were originally issued 10 years earlier for $94,660. Prior to January 1, 2010, the previous owner had included $3,100 of original issue discount (OID) in gross income. The amount of Rob's market discount on the bonds is:
a. $2,110.
b. $7,450.
c. $5,340
d. $5,210.
e. $4,350.