Match List-I with List-II and select the correct answer:

List-I	List-II
a. Best conductors of heat and electricity	1. Gold
b. The highest amount of metal is found	2. Lead
c. Most flexible and able to increase by bang metal	3. Aluminium
d. Minimum heat conducting	4. Silver

A. a-1, b-3, c-2, d-4

B. a-2, b-3, c-4, d-1

C. a-3, b-2, c-4, d-1

D. a-4, b-3, c-1, d-2

Answer: Option D