Which situation demonstrates dormancy?
a. a plant germinates in the spring,
b. a plant grows leafs laterally
c. a plant closes its flowers at night.
d. a plant becomes inactive and stops growing,

A plant becomes inactive and stops growing,

Explanation:

Dormancy is a period in an organism's life cycle when growth and development temporarily stops.Dormancy enables plants to survive in climates where at some point is unsuitable for growth such as dry seasons or winter.However chemical treatment has been proven in stopping seed dormancy especially in woody plants.A slight injury to the cells may also play a role in the mechanism of action.