Question

which is the main light - absorbing pigment for photosynthesis?
carotene
chlorophyll
hemoglobin
anthocyanin

Explanation:

Chlorophyll is the main pigment in plants that absorbs light energy for photosynthesis. Carotene is an accessory pigment. Hemoglobin is in blood (for oxygen transport). Anthocyanin gives color to flowers/fruits (not for photosynthesis light - absorption).

Answer:

B. chlorophyll