Out of the given alternatives given choose the most appropriate option.
Hard work tells ____________ one's health.

Correct option is A

The correct option to fill in the blank is (a) on.
• Explanation:
– The expression "tells on" means to have a negative effect, especially in terms of health or strength.
– “Hard work tells on one’s health” means it affects health adversely.
• Grammatical rule used:
– Certain verbs take specific prepositions idiomatically; “tell on” means to have an effect (usually bad).
• Explanation in Hindi:
– “Tell on” एक मुहावरा है जिसका अर्थ है “प्रभाव डालना”, विशेषकर बुरा प्रभाव।
• Example:
– Lack of sleep tells on your performance. ✅
Meanings of the other options:
• (b) upon ❌
– English: Archaic/informal variant – rarely used now.
– Hindi: पर (पुराना रूप)
• (c) at ❌
– English: Denotes direction/location – incorrect here.
– Hindi: पर
• (d) into ❌
– English: Suggests movement or transformation – unsuitable.
– Hindi: में