The fact that 3-month-olds do not spontaneously remember a kicking strategy that they learned two weeks earlier suggests that:

A) infant amnesia is a valid term.
B) infants cannot remember anything for very long.
C) infant memory is fragile.
D) infants are focused on facial recognition rather than gross motor movements.

The fact that the infants did not remember a kicking strategy after only two weeks suggests that infant memory is fragile and easily forgotten or lost. This does not necessarily indicate that all infant memories are short-lived or that they cannot remember anything for very long, nor does it necessarily demonstrate a preference for facial recognition over gross motor movements. The term "infant amnesia" refers to a broader phenomenon where adults are unable to recall memories from their first few years of life, which is not directly related to the results of this study.