A Woman Is Growing an African Violet on Her Windowsill

A woman is growing an African violet on her windowsill. After several weeks, she notices that the plant is leaning toward the right, in the direction of the window. In the stem(s) of her African violet, where would you expect to find most of the auxin?

A) Auxin will be on the left (shaded) sides of the stems, facing away from the window.
B) Auxin will be on the right (lit) sides of the stems, facing toward the window.
C) Auxin will be equally distributed between the right and left sides of the stems.
D) Gibberellic acid-not auxin-will be in the stems of the African violet.