Glen and Lynda are hired to rake leaves. Glen is paid $3 for each bag of leaves he rakes. Lynda is paid $7 for each hour she works. Glen is paid according to a ______ schedule of reinforcement. Lynda...

Glen and Lynda are hired to rake leaves. Glen is paid $3

for each bag of leaves he rakes. Lynda is paid $7 for each

hour she works. Glen is paid according to a ______ schedule of reinforcement. Lynda is paid according to a ______

schedule.
a) variable ratio; variable interval
b) fixed ratio; fixed interval
c) variable ratio; fixed interval
d) fixed ratio; variable interval