Answer:
A plot is a causal sequence of events, the "why" for the things that happen in the story. The plot draws the reader into the character's lives and helps the reader understand the choices that the characters make. ... For example, in a mystery, the author will withhold plot exposition until later in the story.
Explanation:
What undermines Gertrude’s confidence is the fact that she
is dependent on Claudius. If she was a
confident woman then she would find out for herself whether or not the rumor
was true that the King was murdered.
Hamlet also called her fickle when he said “Frailty is thy name woman.” Even when Hamlet tells her enough to know
that there is something wrong Gertrude would still stand by her new husband and
that is what undermines her confidence.
