四番。重い荷物をたくさん持っていて、歩くのが大変です。近くの友達に手伝ってほしいです。何と言いますか。

The correct choice is Option 2: 'The baggage is heavy and I'm in trouble. Could you hold one for me?' This is a natural request using '〜てくれない？' (could you do a favor?). Option 1 says 'I will hold one for you' ('持ってあげるよ'), which reverses the favor. Option 3 says 'The baggage is light; please let me hold everything.'