What will most likely happen to a plant that does not receive enough sunlight a. the chloroplasts will produce more glucose b. the calvin cycle will increase its production of adp. c. the dark reactions will occur faster. d. the calvin cycle will produce smaller amounts of glucose

Option D, the Calvin cycle will produce smaller amounts of glucose

Explanation:

A plant produces glucose by using the carbon dioxide, ATP and NADPH from the light-dependent reactions during the  dark reaction of photosynthesis.

if the plant do not receive enough light, it will not be able to generate sufficient amount of ATP and NADPH for a longer period of time and ultimately it may stop working.

With reduced ATP and NADPH, the Calvin cycle  will ultimately produce smaller amounts of glucose.

Hence, option D is correct