Multiple choice general knowledge math & puzzles

I don't agree with you, but your idea certainly gives me food _____.

  1. for fun

  2. for consider

  3. for thought

  4. for thinking

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

The idiom is 'food for thought' - meaning something that deserves careful consideration. The other options don't complete a standard English expression.