Q. Exercise is necessary . . . . . . . . a good health.
✅ Correct Answer: (B)
for
Explanation: 'For' is used to indicate that 'exercise' is related to 'good health'. Hence it makes the sentence meaningful.
Explanation by: Team MCQ Buddy
'For' is used to indicate that 'exercise' is related to 'good health'. Hence it makes the sentence meaningful.