Question

Select the grammatically correct sentence:

• A. Rickets are a bone disease caused by vitamin D deficiency.
• B. Rickets were caused by a poor diet.
• C. Rickets is a bone disease caused by vitamin D deficiency.
• D. Rickets have symptoms like swelling.

Answer 1

Answer:

B. Rickets were caused by a poor diet.

• Despite ending in "s", "Rickets" is treated as a singular noun (name of a disease), so we use "is".