Final answer:
The correct answer is Option A. Deforestation will decrease the amount of groundwater because more surface water will run off of the deforested area.
Step-by-step explanation:
Deforestation will decrease the amount of groundwater because more surface water will run off of the deforested area. Forests act as a natural sponge, absorbing rainfall and allowing it to slowly infiltrate into the groundwater system. When forests are removed, there is less vegetation to capture rainwater, leading to increased surface runoff and decreased groundwater recharge.