Answer:
To make glucose to use as food (?)
Step-by-step explanation:
Why is photosythensis important?:
"Plants use the process of photosynthesis to transform water, sunlight, and carbon dioxide into oxygen, and simple sugars that the plant uses as fuel."
"During photosynthesis, plants trap light energy with their leaves. Plants use the energy of the sun to change water and carbon dioxide into a sugar called glucose. "
I highly doubt the answer would be 'to make ATP for energy' because even though ATP is vital for plants--
"This is an especially vital source of ATP for plants because ATP is also needed for them to synthesize glucose in the first place."
-- it helps with making glucose and aids in photosynthesis, plants do not go through photosynthesis to make ATP they go through it to make glucose, and ATP helps with that process, glucose contains much more energy than ATP, and glucose is needed as food for the plant; in conclusion, 'B: to make glucose to use as food.' is the most probable answer.