Answer:
?D
Step-by-step explanation:
If it is a proportional relationship, y/x must be constant
Table 1
y/x = 2/1 = 2
5/3 ≠ 2
Not proportional
Table 2
y/x = 4/1 =4
10/2 =5
Not proportional
Table 3
y/x =5/2.5 =2
6/3 =2
10/5 =2
15/6 =2.5
Not proportional
Table 4
Not shown