Match the following columns:

Column I	Column II
a. Hard wood cutting	1. Grape
b. Inarching	2. Sapota
c. Veneer grafting	3. Mango
d. Stooling	4. Guava

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

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

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

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

Answer: Option D