Answer:
C. A plant with chlorophyll a and chlorophyll b will absorb a greater range of light than it would if it had chlorophyll a only.
Step-by-step explanation:
Chlorophyll a is the primary photosynthetic pigment while chlorophyll b is the accessory pigment that collects energy and passes it on to chlorophyll a.
Chlorophyll a absorbs energy from wavelengths of blue-violet and orange-red light while chlorophyll b absorbs energy from wavelengths of green light.