When Battu is practicing playing the piano, his mother rewards him by occasionally giving him a hug. This is best described as an example of a _____ schedule.
A) VT
B) VI
C) VD
D) VR

Question

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The Answer of When Battu is practicing playing the piano, his mother rewards him by occasionally giving him a hug. This is best described as an example of a _____ schedule.
A) VT
B) VI
C) VD
D) VR

When Battu Is Practicing Playing the Piano, His Mother Rewards