DrArceneaux Has Developed Several Alternative Plans to Increase the Number

Dr.Arceneaux has developed several alternative plans to increase the number of online practice quizzes his students complete.Which plan below is correctly matched with a reinforcement schedule?

A) 1 bonus point for every two online practice quizzes completed - fixed-interval
B) 1 bonus point awarded every 2 weeks if two or more quizzes have been completed - fixed-ratio
C) 1 bonus point awarded every now and then (about 2 weeks on average) if two or more quizzes have been completed recently - fixed-ratio
D) 1 bonus point for every quiz completed - fixed-ratio.