Multiple choice general knowledge

It is not advisable to enter ----------------- the enemy's camp

  1. on

  2. for

  3. into

  4. during

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

The phrase 'enter on' is a valid idiom meaning to begin or undertake something, often used with military or strategic contexts like 'enter on a campaign'. In this context, entering upon/beginning an action against the enemy's camp makes sense. 'Enter into' is used for agreements or discussions, 'enter for' means to register for something, and 'during' is not a preposition that follows 'enter'.