Step 1: Identifying common viral diseases of crops.
Each crop plant is associated with a specific well-known viral disease commonly asked in biology examinations. Step 2: Correct matching.
Banana is affected by bunchy top disease.
Sugarcane is affected by grassy shoot disease.
Papaya is affected by leaf curl disease.
Potato is affected by leaf roll disease.
Brinjal is affected by little leaf disease. Step 3: Verification of option.
Only option (C) correctly matches all host plants with their respective viral diseases. Step 4: Conclusion.
Hence, option (C) is the correct answer.