Which of the Following Statements Regarding Plants' Ability to Sense

Which of the following statements regarding plants' ability to sense their environment is NOT true?

A) Photoreceptors allow plants to sense light availability.
B) Plants have chemical receptors that allow them to detect and respond to chemical gradients.
C) Plants have mechanical receptors that allow them to sense the Earth's gravitational field.
D) Plants contain touch-sensitive genes that allow them to respond to wind.
E) Plants have difficulty detecting temperature and so rely on light wavelengths.