When Teaching a Child the Correct Position of the Knife

Multiple Choice

When teaching a child the correct position of the knife, fork, and spoon at a place setting at a dinner table, the teacher initially draws the location of the utensils on a place mat, and then fades out the drawing over trials.The drawing on the place mat is a(n) :

A) extra-stimulus prompt
B) within-stimulus prompt
C) physical prompt
D) time-delay prompt