This is a test of commonsense with single/multi-choices. Complete the next sentence:

A woman stands on a rocky shore with the words "tai-ji-quan forma de 10 ejercicios de estilo yang" overlaid on the screen. she

pick from the following. (a). performs slow, tai chi-like techniques by the water with the sun to her back.. (b). demonstrates tai chi in a swimming environment.. (c). then throws paint on the ground in front of her and crouches on top of it.. (d). does an unilateral throw and several other clips of tai-ji are shown..
The answer is:
(a).