You will be given a definition of a task first, then some input of the task.
In this task, you are given a multiple-choice question and you have to pick the correct option. Answer with option indexes (i.e., "A", "B", "C", and "D").

panting is the equivalent to humans (A) begging for water constantly (B) crying for hours on end (C) drowning in a small puddle (D) expelling water from their dermis
Output:
D