Question

l3 - editing passage
edit the underlined portion of sentence 4, reproduced below.
but their is another way to look at schooling — through the lens of a method called “mastery learning,” in which the student’s understanding of
a subject is a constant and time is a variable.
but their is another way to look at schooling — through the lens of a method called “mastery learning,” in which the student’s understanding of a
subject is a constant and time is a variable.
but their is another way to look at schooling — through the lens of a method called “mastery learning,” in that the student’s understanding of a
subject is a constant and time is a variable.
but there are another way to look at schooling — through the lens of a method called “mastery learning,” in which the student’s understanding of a
subject is a constant and time is a variable.
but there is another way to look at schooling — through the lens of a method called “mastery learning,” in which the student’s understanding of a
subject is a constant and time is a variable.
but there is another way to look at schooling — through the lens of a method called “mastery learning,” in which the student’s understanding of a
constant and time is a variable.

Explanation:

To determine the correct option, we analyze the grammar and context. The phrase "in which" is used to introduce a relative clause for the method "mastery learning", which is correct. Also, the original sentence's structure needs to be maintained for clarity. The fifth option (the last one) has the correct relative pronoun "in which" and proper sentence structure, along with the correct continuation about the student's understanding, subject being constant, and time being variable.

Answer:

The fifth option (the last circular option): But there is another way to look at schooling — through the lens of a method called "mastery learning," in which the student’s understanding of a subject is a constant and time is a variable.