Select the option that correctly rectifies the error in the given sentence.
Rebecca, our personal assistant, is on leave because she is having a baby.
1
Rebecca, our personal assistant, is on leave because she is expecting a baby.
2
Rebecca, our personal assistant, is on leave because she is growing a baby.
3
Rebecca, our personal assistant, is on leave because she is waiting for a baby.
4
Rebecca, our personal assistant, is on leave because she is having a baby