The given sentences are idiomatic expressions that convey specific meanings. Let's analyze these:
- He is in a fool’s paradise: This means that someone is living in a state of happiness that is false or not based on reality.
- He can’t see the wood for the trees: This indicates someone is unable to see the big picture because they are focused on small details.
- He can’t distinguish between reality and fancy: Suggests difficulty in separating what is real from what is imagined or unreal.
- He is unable to separate unimportant details from the really important ones: Implies an inability to focus on important matters due to distraction by trivial details.
Upon comparison:
- Sentences 2 and 4 both refer to difficulty in distinguishing between central and peripheral elements, thus conveying the same meaning.
Therefore, the correct answer is the combination of sentences 2 and 4.