A green plant bends towards the source of light when exposed to the light as it grows. Which of the following is the best explanation of the phenomenon

Options

A. The apices of their stems are attracted by light
B. They need light for photosynthesis
C. Some auxins accumulates on the shaded side ti induce greater cell elongation on that side
D. Light stimulates the cells on the illuminated side to increase red light

Answer

c

Explanation

(c ) Accumulation of auxin at the apex of the plant, which is responsible for the phototropism movement so that plant cells are elongated.