Identify the sentence with the correct subject-verb agreement.

• ক Neither the students nor their instructor are satisfied with the new curriculum.
• খ Many a promising candidate have failed due to a lack of preparation.
• গ The number of accidents on this highway has decreased significantly this year. ✅ সঠিক উত্তর
• ঘ The Prime Minister, along with his cabinet colleagues, have arrived at the conference.