What would happen if plants did not have enough carbon dioxide to engage in photosynthesis?

Question

a
Plants would not be able to grow but would be able to produce oxygen for animals to breathe.
b
Plants would be able to grow but would not be able to produce oxygen for animals to breathe.
c
Plants would be able to grow and produce oxygen for animals to breathe.
d
Plants would not be able to grow and produce oxygen for animals to breathe.

Answer 1

d
Plants would not be able to grow and produce oxygen for animals to breathe.