In a study cited in the text (mennella et al., 2001), infants exposed prenatally to the flavor of carrots showed fewer disapproving facial expressions when fed carrot-flavored cereal than did unexposed infants. in this study, the number of disapproving expressions is a(n) definition of liking for carrots.

operational                      

Explanation:

The answer is "operational".

The infants who are already exposed to carrots prenatally in the womb showed fewer disliking for carrot than those babies who are not exposed to carrots earlier.

Thus those babies who are exposed to carrots prenatally shows an operational liking for carrots because they are already exposed to the taste of carrots.

Thus the answer is ---  operational.    

answeranglican church;

i think it's d because a "rythem" is a

1)a particular type of pattern formed by rhythm.

2)a strong, regular, repeated pattern of movement or sound.

3) the systematic arrangement of musical sounds, principally according to duration and periodic stress.

so, d mabye.