In Response to Moderate Winds, Many Small Spiderlings Climb High

In response to moderate winds, many small spiderlings climb high in vegetation and release several strands of silk that form a "parachute." The spider is then lifted into the air by the wind and drifts to a new location, a phenomenon known as "ballooning." Which of the following is true?

A) The movement associated with ballooning would not be considered a behavior because it is not internally coordinated
B) Ballooning would not be considered a behavior because it is not externally visible
C) Spider movement associated with ballooning would not be considered a behavior because it occurs in response to changing conditions
D) The movement associated with ballooning would not be considered a behavior because it is not an activity pattern
E) The movement associated with ballooning would not be considered a behavior because only some spiders exhibit this activity