Multiple choice general knowledge math & puzzles

I think I understand the nuts and _____ of the operation.

  1. screws

  2. hammer

  3. nails

  4. bolts

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The idiom is 'nuts and bolts' - referring to the basic, practical details of something. Screws, hammers, and nails are tools, but 'bolts' completes this specific expression.