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Sajjad1994
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Vaidya
Only options C and E correctly capture the role of the 2nd BF.
However, I don't understand why C is correct.

If the Big Bang theory is not actually undermined, what is the inconsistency in the model?

The first BF indicates that Helium predicted (as per Big bang theory) is much higher than the actual Helium found. So the Big bang theory suggests something that is not true. Thus BF1 points out an inconsistency in the Big bang theory.

Later in the passage an alternative model is stated to explain this discrepancy, but BF 1 does not refer to this alternative model.
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SajjadAhmad
On the basis of the Big Bang theory scientists predicted levels of Helium-3 in the universe that are ten times greater than the levels actually observed. According to the original model, Helium-3 is produced when low-mass stars burn up hydrogen and become �red giants�, as well as being produced in the Big Bang itself. Researchers have now produced a new model in which the Helium-3 produced by a red giant is pushed to the star�s interior and burnt up. Hence the Big Bang theory is no longer undermined by Helium-3 data.

The two portions in bold-face are related to each other in which of the following ways?

A. The first highlights an observation that tends to undermine a particular theory. The second is that theory.
B. The first is a fact that undermines a theory. The second is context for accepting that theory.
C. The first points to an inconsistency in a particular model; the second is the author�s main conclusion.
D. The first is a challenge to a classic theory; the second resolves that challenge.
E. The first is a position that the author does not accept; the second is the author�s position.

Why D is not correct? Would anybody explain the reason why D is not correct?
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The word Hence in the argument is an identifier for the conclusion.
=> 2nd boldface is the conclusion.

Also, the 1st boldface is an inconsistency in a particular model as the predicted outcome is different from the actual outcome.

Only option C says that 2nd boldface is the conclusion.

Answer: C
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Sajjad1994
On the basis of the Big Bang theory scientists predicted levels of Helium-3 in the universe that are ten times greater than the levels actually observed. According to the original model, Helium-3 is produced when low-mass stars burn up hydrogen and become red giants, as well as being produced in the Big Bang itself. Researchers have now produced a new model in which the Helium-3 produced by a red giant is pushed to the stars interior and burnt up. Hence the Big Bang theory is no longer undermined by Helium-3 data.

The two portions in bold-face are related to each other in which of the following ways?

A. The first highlights an observation that tends to undermine a particular theory. The second is that theory.
B. The first is a fact that undermines a theory. The second is context for accepting that theory.
C. The first points to an inconsistency in a particular model; the second is the authors main conclusion.
D. The first is a challenge to a classic theory; the second resolves that challenge.
E. The first is a position that the author does not accept; the second is the authors position.

First Statement: argument which states inconsistency/irregularity/unreliability in the existing model

Second Statement: Conclusion which is supported by First statement


Clause I Clause II
Option (A) -> True False

Option (B) -> False False

Option (C) -> True True

Option (D) -> True False

Option (E) -> False True

If Statement 1 of Option (B) is predicted, we don’t have any info how this prediction is correlated to the theory as a Fact

As Statement 1 of Option (E) states we don’t have any evidence to commit that author doesn’t accept the statement
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