What effect does the narrator's dream about Elizabeth have on the story? A It reveals key information.
B It introduces a plot twist.
C It builds tension,
D It adds mystery.

A It reveals key information.

Explanation:

According to chapter 5 of the book Frankenstein, Victor, the narrator has a dream about Elizabeth which has elements of a previous tragedy and foreshadows a greater tragedy to come.

The effect of this dream on the story is that it reveals important information.

onto a large boat, and mark the water level that the boat sinks to. then, take the elephant out and put a bunch of marked weights onto the boat until it reaches the same water level. add up the masses of the weights to get the weight of the elephant.