Answer: d. They keep their leaves year round.
Plants in deciduous forests have special adaptations for survival in deciduous forests it depends upon the seasonal variations. In winters, because of lack of proper sunlight leaves are shed from the plants. As, without proper sunlight they are not able to conduct photosynthesis also the budding sites where the leaves originate also get blocked in order to prevent water loss through transpiration. Therefore, plants in deciduous forest does not keep their leaves year round.
