💡 Detailed Explanation
The correct choice is Option 4: 'Swimming club.' The male student specifies his conditions: he wants to do sports ('運動はしたい'), but isn't good at team sports like soccer or baseball ('サッカーとか野球はあまり得意じゃなくて'). He also prefers individual sports ('一人でできるものがいいな'). Finally, he declares: '泳ぐのは好きだから、水泳クラブにしようかな' (I like swimming, so maybe I'll join the swimming club). The woman supports this choice, confirming Option 4.