A Priming Stimulus Depicts a Square in Front of a Disk

A priming stimulus depicts a square in front of a disk so that the retinal image of the disk has one quadrant removed. When the test stimulus is a pair of disks, reaction times to decide that the disks are the same are

A) enhanced by the prime.
B) delayed by the prime.
C) enhanced by the prime for brief intervals between the probe and the test.
D) delayed by the prime for brief intervals between the probe and the test.