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

List-I	List-II
a. Rate of respiration	1. Auxanometer
b. Rate of growth of plant	2. Respirometer
c. Size of stomata	3. Hellio tropic chamber
d. Demonstrate phototropism	4. Poromoter

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

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

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

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

Answer: Option A