100 points What is the result of the refraction of the light?

The fish appears fuzzy.
The fish is not where it appears to be.
The fish is where Sam expects it to be.
The fish is able to see Sam more easily.

EXPLAIN YOUR ANSWER

Set $r$ is a set of rectangles such that (1) only the grid points shown here are used as vertices, (2) all sides are vertical or horizontal and (3) no two rectangles in the set are congruent. if $r$ contains the maximum possible number of rectangles given these conditions, what fraction of the rectangles in set $r$ are squares? express your answer as a common fraction.