Please help me asap Which statement best explains why dragonflies stand on branches with their head down and abdomen in the air when it is hot during the summer?

A. Dragonflies are ectotherms, so they can't sweat to control their body temperature.

B. Dragonflies are endotherms, so they can't sweat to control their body temperature.

C. Dragonflies are ectotherms, so they store energy in layers of fat and can control their body temperature.

D. Dragonflies are endotherms, so they store energy in layers of fat and can control their body temperature.