Select the most appropriate option to fill in the blank.
All the guests were shocked at his ______ laughter.

Correct option is C

The correct option to fill in the blank is (c) Unrestrained.
• ‘ Unrestrained’ means not controlled or limited, especially in the context of emotions like laughter. (Hindi meaning: बेलगाम / असंयमित)
• As per the context, the laughter was shocking because it was loud, uncontrolled, or unexpected.
Example: He burst into unrestrained laughter in the middle of the meeting.
Meanings of other given options and why they are incorrect:
· Unremarkable – (सामान्य / साधारण) – not special or unusual
· Unresolved – (असुलझा) – not settled or solved, used for issues
· Unrecognised – (अज्ञात) – not acknowledged or identified
Thus, only “unrestrained” fits both grammatically and contextually.