A store manager wants to have a sales promotion where she gives prizes to the first several people through the door. The manager wants each person to receive the exact same items and in the same amount. She also wants to distribute all of the prizes. She has 300 pins, 450 ornaments, and 90 mugs to distribute. If the manager wants to give prizes to as many people as possible, how many people will get gifts?

A. 15
B. 30
C. 300
D. 2,100