What is the effect of the personification in the line "The sea was as wet as wet could be"?

The effect of the personification in the line "The sea was as wet as wet could be" is that **it emphasizes the wetness of the sea**. While the phrase may suggest a lively or exaggerated characteristic, the primary function of this line is to underscore the inherent quality of the sea being wet to an extreme degree. So, the best choice would be that it emphasizes the wetness of the sea.