英语完形问题.请看文章的最后一句

英语完形问题.请看文章的最后一句
One day before my final exam,my dad give me a gift.It completely changed my life.On that day I had a fight with my friends and it was a difficult time with my studies.I was unhappy.Then I noticed the gift.I opened it and saw a DVD inside.Its name was “THE SECRET”,however ,I was no mood(心情) to watch it.I sat down to study,but the problem in my life---the fight,the sleepless nights and my poor heath……Everything came to my mind.I wanted an answer but I wondered if there was any.Just then,I saw the DVD again.Maybe it would be helpful.I turned my DVD player.I had no words to describe the feelings I experienced while watching it.The moving(动人的) stories of human beings made me so moved that I wouldn’t forget any of them .thanks to my father’s gift “THE SECRET”,I discovered itself .Everybody has difficulties in their lives.The important thing is that you should be brave enough to face thOne day before my final exam,my dad give me a gift.It completely changed my life.On that day I had a fight with my friends and it was a difficult time with my studies.I was unhappy.Then I noticed the gift.I opened it and saw a DVD inside.Its name was “THE SECRET”,however ,I was no mood(心情) to watch it.I sat down to study,but the problem in my life---the fight,the sleepless nights and my poor heath……Everything came to my mind.I wanted an answer but I wondered if there was any.Just then,I saw the DVD again.Maybe it would be helpful.I turned my DVD player.I had no words to describe the feelings I experienced while watching it.The moving(动人的) stories of human beings made me so moved that I wouldn’t forget any of them .thanks to my father’s gift “THE SECRET”,I discovered itself .Everybody has difficulties in their lives.The important thing is that you should be brave enough to face them .now I have started getting on well with my studies and my friends.And I’m in good heath,too.I often hear people says,“Wow!what perfect life you have!”em .now I have started getting on well with my studies and my friends.And I’m in good heath,too.I often hear people says,“Wow!what perfect life you have!”
根据这篇文章出的完形题.其中一个是把最后一句WHAT隐藏了,选项有A.what a .B what C.请问LIFE是可数的,为什么不能用what

life是不可数的,它做生命时是可数的,做生活就不可数了