Correct Answer: shed their leaves every year

Solution : The correct option is to shed their leaves every year.

Deciduous trees grow in a variety of temperate and subtropical climates across the world, including North America, Europe, Asia, and portions of South America and Australia. As part of their natural life cycle, deciduous trees drop their leaves every year. This is known generally as " leaf drop" or "l eaf fall." Deciduous trees lose their leaves in the autumn or winter season in response to environmental cues such as temperature and sunshine hours changes.