If you think a pill caused your rapid breathing and racing heart, you won't feel as much emotional arousal

What is the difference between a person's genotype and his or her phenotype?

What will be an ideal response?

In a sequential design,

A) participants are presented with a novel task, and researchers follow their mastery over a series of closely spaced sessions. B) groups of people differing in age are studied at the same point in time. C) researchers conduct several cross-sectional or longitudinal investigations. D) participants are studied repeatedly at different ages, and changes are noted as they get older.