Hello, I am trying to simplify this expression

AC' + AB' + A'BC' + A'B'C TO AC' + BC' + B'C

This is what I have done so far:

AC' + A'BC' + AB' + A'B'C

= C'(A+A'B) + B'(A+A'C)

= C'(A+B) + B'(A+C)

= AC' + BC' + AB' + BC'

I wanna get rid off AB' but am not sure how?? Any helo will be appreciated.