Which table represents a linear function?

Answer:
Based on what I see, it would be D.
Step-by-step explanation:
Because the x-side is +1 all the way down and the y-side is +5 for all.
So:
x-side (+1): 1+1 =2 / 2+1=3 / 3+1=4
y-side (+5): -5+5=0 / 0+5=5 / 5+5=10