Why do deciduous trees shed their leaves during the winter season?

The correct option is B To conserve water
Deciduous trees shed their leaves to survive. Once the winter has passed, the soil loses most of its moisture content. Since there is a derth off water, the tree must conserve all the water it needs to survive. It does so by shedding leaves which utilise water for photosynthesis. 'Deciduous' means tending to fall off' . These leaves grow back during the spring season.