Answer:
Option 4; Iron
Step-by-step explanation:
Both granite and marble will experience a slight effect over many years but it will not be horrible.
The option that makes the most sense is actually wrong. Although plastic is weak, it does not weather away
Now we have iron.
We know that iron rusts. And it will rust pretty quickly. Even faster is salt water. This means the statue will change very quickly.
Since iron rusts and corrodes, this makes it the least desirable material.
