Which Two Things are Sensed by a Chlamydomonas Cell's Eyespot

Question

Which two things are sensed by a Chlamydomonas cell's eyespot?
A) light location and colour
B) light location and intensity
C) light energy and colour
D) light energy and intensity

Accepted Answer

Chlamydomonas cells use their eyespot to sense the location and intensity of light, which helps them to move towards light sources for photosynthesis.