Scenario Please Read the Following Scenario to Answer the Following Questions

Multiple Choice

Scenario
Please read the following scenario to answer the following questions.
The last few miles of the marathon are the most difficult for Heather. Her hair is plastered to her head, sweat clings to her arms, and her legs feel as if they had nothing left. Heather grabs a cup of ice water. The ice cubes smash against her nose as she gulps some cool refreshment and keeps on running. Then a breeze kicks up and she finally feels some coolness against her skin. Drops of sweat, once clinging to her forehead, now spill down, and Heather feels a stinging as the sweat flows into her eyes.
-Why did the sweat on Heather's forehead and arms form drops?

A) because of the high salt content of sweat
B) because of the cohesive nature of water
C) because of the ability of water to moderate heat
D) because of the high evaporative cooling effect of water