Which of the Following Influence Scenarios Represents persuasion Through Symbolic

Which of the following influence scenarios represents persuasion through symbolic action?

A) Art sees a picture of a malnourished African child in his local newspaper and decides to donate $100 to an international charity organization.
B) A human resource executive decides not to hire a particular job candidate after learning of her criminal history.
C) Participants in a social scientific study rate a taller speaker as more credible than a shorter speaker even though the two speakers delivered speeches of the same quality.
D) A passer-by observes a protest march by members of People for the Ethical Treatment of Animals (PETA) and afterwards decides to volunteer to help at the local animal shelter.