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Which of the Following Begins a Primary Circular Reaction

Question 10

Multiple Choice

Which of the following begins a primary circular reaction?


A) An infant's thumb and mouth first come in contact unintentionally and trigger the sucking reflex.
B) An infant is given a pacifier and begins to suck on it.
C) An infant possesses an instinct that sucking a thumb is similar to sucking on a pacifier.
D) An infant is satisfied with sucking on a pacifier when he or she is not hungry.

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