Match the following columns:

Column I	Column II
a. Bitter pit	1. Excessive N2 and K
b. Cork spot	2. Cu deficiency
c. Mottle leaf	3. Ca deficiency
d. Exanthena	4. Excess of boron

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

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

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

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

Answer: Option B