How does shirley jackson utilize point of view to build suspense?

she uses the teacher's point of view to reveal surprising details about laurie that are unknown to his parents.
she limits the reader to the point of view of laurie's family, which keeps the reader as unaware of the true situation as the parents.
she structures the story to be told from laurie's point of view, so that the reader can see his perspective and anticipate the plot twist.
she structures the story so it is told from multiple points of view, so that the reader can see all elements of the plot.

One of the author's purposes in the code book is to explain different types of codebreaking to his readers. which line best demonstrates this purpose? a theoretical breakthrough would be a fundamentally new way of finding alice's private key mathematicians have been studying factoring for centuries, and modern factoring techniques are not significantly better than ancient techniques a more recent development is the so-called tempest attack, which aims to detect the electromagnetic signals emitted in a computer's display unit if scientists could build a quantum computer, it would be able to perform calculations with enormous speed mark this and return save and exit next submit