Correct option is D
Option (d) is the correct meaning of the given idiom.
Take one’s hat off to someone: To express admiration or respect for someone's achievement. (किसी के कार्य की सराहना करना)
Example:
I take my hat off to the firefighters who saved lives in the fire.
Other related idioms:
·
Tip your hat to – show respect.
·
Give someone credit – acknowledge someone’s effort.
·
Salute someone’s effort – admire someone’s achievement.