Consider the following statements and choose the correct answer:
1. At low temperature, the viscosity of water increases
2. Low temperature retards the growth of the roots
3. At low temperature, viscosity of protoplasm and cell wall decreases
4. Low temperature increases the metabolic activities of the root cells

A. Only 1 and 2 are true

B. Only 1, 2 and 3 are true

C. Only 3 is true

D. Only 3 and 4 are true

Answer: Option A