Which action does the term exhort describe?

The term "exhort" specifically refers to the act of urging someone to do something, typically in a forceful or encouraging manner. It captures the essence of encouragement, motivation, or urging someone to take action, often with a passionate or earnest tone. In various contexts, this can apply to motivating individuals or groups to pursue a particular goal or to engage in a specific behavior.

In contrast, the other actions suggested by the answer choices revolve around negative or critical interactions. Criticism, mockery, and withdrawal of support do not align with the encouraging connotation that "exhort" carries. Therefore, the definition of "exhort" distinctly highlights its positive directive nature, solidifying option C as the appropriate choice.