500
                            Choose the sentence in which the comma is used incorrectly.  
a. Items such as money, jewelry, radios, and cameras should be locked in the safe. 
b. Sarah, is the only one who lives on Oak Avenue. 
c. We saw pandas, lions, and tigers at the zoo. 
d. Josh, please help me carry these out to the car.
                            b. Sarah, is the only one who lives on Oak Avenue.