Select the most appropriate option to fill in the blank.
Overindulgence in anything may prove ________ to health.

Correct option is B

The correct option to fill in the blank is injurious.
Injurious: Harmful or damaging to health or well-being. (Hindi: हानिकारक)
Example: Overeating is injurious to health.
Explanation:
Overindulgence in anything is harmful or damaging, so "injurious" is the most appropriate word to fill in the blank.
Incorrect options explanation:
· Spurious: False or not genuine. (Hindi: कपटी, झूठा)
· Repetitive: Involving repetition, not related to harm. (Hindi: पुनरावृत्ति करने वाला)
· Commercial: Related to commerce or business, not related to health damage. (Hindi: व्यापारिक)