Reduce the following Boolean expression:

$1.$ X $=$ C$\text{'}+$BC$\text{'}+$ABC'

$2.$ X $=$ BC$\text{'}+$AB'C$+$ABC'$+$BC$\text{'}$

$3.$ X $=$ AC$\text{'}+$ABC'$+$BC$\text{'}+$A$\text{'}$B