Answer:
The correct answer is option c-to survive colder seasonal temperatures.
Step-by-step explanation:
Broad leafed trees shed their leaves in autumn or winter season which is experienced with colder temperature.
These leaves are called deciduous leaves and shed their leaves because these leaves lack wax coating and anti-freeze chemicals due to which the fluid which flows through veins can be freeze by cold temperature so, plants to save the energy get rid of them.
Thus, option c-to survive colder seasonal temperatures is the correct answer.