Answer :
Option C) is correct z +3 is also an odd number
z- 3 is odd number,
What is odd number?
odd number are given as 1, 3, 5, 7, 9,11,.. etc.
since z - 3 odd number
mean while
if we add 3 to z will also be the odd number cause subtracting 3 twice from z-3 returns the reverse value i.e.
so z + 3 also an odd number.
Thus, z +3 is also an odd number
Learn more about odd numbers here
https://brainly.com/question/17178884
#SPJ2