The ideal temperature for most of the cultivable crops is-
-
30°C - 50°C
-
15°C - 40°C
-
35°C - 40°C
-
45°C - 55°C
B
Correct answer
Explanation
Most cultivable crops grow optimally in the temperature range of 15°C to 40°C (Option B). Temperatures above 45°C (Options A and D) cause heat stress and damage, while the lower end of Option B (15°C) represents the minimum for active growth. 30-50°C (Option A) and 45-55°C (Option D) are too high, and 35-40°C (Option C) is too narrow.