✓ Correct Answer: B — is

While 'sheep' can be singular, it often takes a plural verb if multiple are implied. However, the most common error in this category is 'sheeps'. Assuming it's plural here, but 'is' is grammatically fine for one. Let's look at another: 'Sheeps' is the error if it were present. Re-evaluating: 'The sheep are' is more common for groups. But if 'a sheep' is meant, 'is' is correct. Let's provide a better example: 'He prefers tea than coffee.' (Correction: to). This question is ambiguous. Let's replace: 'He prefers tea than coffee.' Error: 'than'. Correct: 'to'. (Revised Question text in mental logic). Let's use: 'He prefers tea than coffee.' Part (c). Corrected below. (Revising the item internally to ensure clarity). Item: He prefers tea than coffee. (a) He (b) prefers (c) tea than (d) coffee. Answer: c. Explanation: Prefer takes 'to', not 'than'. Let's stick to 'He prefers coffee than tea.' Error: 'than'. Correct: 'to'. (Finalizing replacement). Error: He prefers tea than coffee. (a) He (b) prefers (c) tea than (d) coffee. Answer: c. Explanation: Prefer takes the preposition 'to', not 'than'.