Because The stem cells possess the ability to differentiate into multiple types of neural cell, depending upon their environment.
Therefore Neural Precursor Cells hold great potential for treating a variety of neurodegenerative diseases and injuries to the spinal cord. As a result, there is great interest to use these cells to repair spinal cord damage and help bring back connectivity.
P: Neural Precursor Cells hold great potential for treating a variety of neurodegenerative diseases and injuries to the spinal cord
P: The stem cells possess the ability to differentiate into multiple types of neural cell, depending upon their environment
C: As a result, there is great interest to use these cells to repair spinal cord damage and help bring back connectivity
Breakdown: Obviously, if you can do what I just did above, you can solve this question in less than a minute. But how do you do that? You use the "because/therefore" method to determine a premise and to determine a conclusion. A premise is always the because, and the conclusion the therefore. Here, the issue is realizing that first sentence is a major premise/sub-conclusion that supports the main conclusion. By switching up the order, we can see how one supports another, which the conclusion.
Put another way, by asking yourself "why" during a statement, you can find support for it; that support is a premise that helps a conclusion or sub-conclusion.
Which one of following best describes the bold faced part of the passage?
(A) It is the main conclusion of the argument --
Nope, it supports something else AND the last sentence is the main conclusion(B) It is a premise that supports another premise --
It doesn't support another premise; it supports the conclusion (C) It is a premise that supports another premise that supports the main conclusion --
reversed, as it does not support another premise; another premise supports it(D) It is a conclusion that is supported by a premise and is used to support the main conclusion --
Perfect. It is a sub-conclusion that is supported and used as support. (E) It is a conclusion that is not supported --
Nope, as it is supported.