Answer:
<h2>A.</h2>
Step-by-step explanation:
Yes, they have a proportional relationship.
The table shows sequences, where <em>x-values </em>increase +3, and <em>y-values </em>increase +5, that is, while <em>x </em>increases 3 unites, <em>y </em>increases 5 units, this ratio between variables can be described as the slope:

This fraction or ratio is referring to what we said in words, while <em>y </em>increases 5 units, <em>x </em>increases 3 units. We observe that is a positive ration, this means that magnitudes are both increasing.
Therefore, the right answer is the first one A.