Harry Spent His Summer in the City Panhandling

Multiple Choice

Harry spent his summer in the city panhandling. Every day he would sit on the sidewalk, put a cardboard sign in front of him that said, "Please help," and place his hat on the sidewalk upside down.
Then he would wait. Every now and then someone would put money into his hat. Harry's
Reinforcement schedule is best described as a _________.

A) fixed ratio schedule
B) variable ratio schedule
C) fixed interval schedule
D) variable time schedule