Match the following.

List-I	List-II
a. Zeroth Law of Thermodynamics	1. Give us the concept of temperature
b. First Law of Thermodynamics	2. Defines internal energy
c. Second Law of Thermodynamics	3. Change in internal energy is zero
d. In a complete cycle of changes	4. The efficiency of on engine is always less than unity

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

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

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

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

Answer: Option B