다음 세 문장 중에서..올바른 문장은 몇번인가요?
틀린 문장은..어느 부분이 틀렸는지 알려주시면..감사하겠습니다....

1) in my opinion, reading is the most effective way of reducing stress.
2) when i read an interesting book, i feel like comfortable and relaxed.
3) even 10 minutes of reading are enough for me.