If xy+2z = x(y+z), which of the following must be true?	Choose the correct choice from the following options:
A) 1. x=2 and z=0
B) 2. x=1 and y=1
C) 3. y=1 and z=0
D) 4. x=1 or y=0
E) 5. x=1 or z=0
xy+2z=x(y+z)   xy+2z=xy+xz   2z=xz   it means x=2 or z=0   1. x=2 and z=0nswer 1. x=2 and z=0
<result>A</result>
If xy+2z = x(y+z), which of the following must be true?