IDIOMS

E.g.- As she approached the edge of the cliff, her heart was in her mouth.

For Ex:- "After the long day at work, all I wanted was a good forty winks before heading out for the evening."

E.g.- After a long day at work, he decided to take forty winks on the sofa.

For ex:- "Despite their different backgrounds, John and Mark are cut from the same cloth—both hardworking and always ready to lend a hand."

E.g. Rohan and Raj, both passionate about art and literature, are cut from the same cloth.

For ex:- After hours of trying to fix the computer, I was about to lose my marbles and just call it a day.

E.g.- After studying for hours, I feel like I'm starting to lose my marbles.

The idiom 'bite the bullet' means to force yourself to do something unpleasant or difficult.

Going through the options, the sentence given in option (b) has the most appropriate meaning of the given idiom

E.g.-  Getting my car fixed cost me an arm and a leg.

For ex:- Sarah bent over backwards to help her colleague meet the deadline, even staying late to finish the project