A Moth Prior to Taking Flight Can Display a Number

A moth prior to taking flight can display a number of behaviors.Which behavior is most likely to be for thermoregulation?

A) Grooming antennae with first one front leg and then the other
B) Trembling of wings as antagonistic wing muscles contract nearly simultaneously
C) Walking in tight circles, first slowly and then more rapidly
D) Rapid vibrations of antennae followed by bending antennae forward and backward
E) Slight lifting of wings from the surface the moth is standing on