Consider the following statements regarding the symptoms of rugose mosaic of potato and choose the correct answer:
1. The disease occurs in a sporadic manner, hence causes less damage to the affected plants
2. It makes its appearance as small chlorotic spots
3. The leaves and branches may become rough and rugose due to the abnormal growth of hair
4. The young leaves usually remain unaffected

A. Only 1 and 4 are true

B. Only 1, 2 and 4 are true

C. Only 2, 3 and 4 are true

D. Only 2 and 3 are true

Answer: Option D