Omar and Patrick Sell Magazine Subscriptions by Telephone

Multiple Choice

Omar and Patrick sell magazine subscriptions by telephone.Omar is paid $1.00 for every 5 calls he makes,while Patrick is paid $1.00 for every subscription he sells.Omar is paid on a _____ _____ schedule while Patrick is paid on a _____schedule.

A) fixed ratio; variable ratio
B) fixed ratio; fixed interval
C) variable ratio; fixed ratio
D) fixed ratio; variable interval