Swimming strokes such as the crawl are defined as continuous or repetitive motor tasks because the:
A) skills are performed in a medium in which a greater degree of resistance is
encountered than in air.
B) movement through the water can be sustained with no physical effort by keeping
the body flat in the water.
C) strokes and kicking motions require unilateral rather than bilateral coordination.
D) recovery of the arms and legs leads directly into the next stroke, with no
recognizable beginning and end.

A. skills are performed in a medium in which a greater degree of resistance is  encountered than in air.

Explanation:

Well we know that me can mark B. off because swimming does take physical effort even while keeping your body flat in the water. Now you may also remove option choice D. Because much like moving your fingers you haft to thing about moving your arms one after another before you can actually do it. That leaves A. and C. Now knowing the facts stated in choice C. are false that leaves A. as the only reasonable answer.

d ) power this is the right answer