What stage of plot is the highest point of interest in the story

A. The climax

Typically it's exposition, rising action, conflict, climax, and resolution.

Climax

Explanation:

By the highest point of interest it means the most tense part of the story. and thats climax

i love cake

and don't hate

i know i'm fat

but what's wrong with that

i cant rap

but im sure ya know that

its just for fun

so quit hatin' son

~courtney

an expression designed to call something to mind without mentioning it explicitly; an indirect or passing reference.