Question

Conlan wants to answer the question, “Does phosphorus affect tomato fruit production?” Which statement represents a hypothesis that he can test to answer his question?
A:If phosphorus affects tomato fruit production, then tomatoes that are fertilized with phosphorus will have larger leaves.

B:If phosphorus affects tomato fruit production, then phosphorus should be added to the soil during planting.
C:If phosphorus affects tomato fruit production, then adding phosphorus to the soil will make tomatoes taste better.
D:If phosphorus affects tomato fruit production, then plants that are fertilized with phosphorus will produce more tomatoes.