sreestes wrote:According to the nineteenth-century schema of a "well-made play," all of the happenings on stage are driven by a single discovery, such as that of a letter, and when they follow from it in a series of events, often involving misinterpretations by the characters.

all of the happenings on stage are driven by a single discovery, such as that of a letter, and when they follow from it in a series of events, often involving misinterpretations by the characters

all of the happenings on stage are driven by a single discovery, such as that of a letter, and by the series of events, often involving misinterpretations by the characters, that follows from it

all of the happenings on stage are driven by a single discovery, such as that of a letter, as well as the series of events, often involving misinterpretations by the characters, that follows from it

a single discovery, such as that of a letter, drives all of the happenings on stage, and also the series of events, often involving misinterpretations by the characters, that follow from it

the discovery of a single item such a letter drives all of the happenings on stage, as well as the series of events, often involving misinterpretations by the characters, that follow from it

Hi, I found this question in Gmatfree and I am unclear with the interpretation the author has given. Can someone please help me?

And also explain what "that" and "it" refer to at the end of the sentence in each of the options.
I will really appreciate, if someone solve this problem by eliminating fluff. I tried it in that way and I am stuck.


Thank you