A) The first describes the circumstance that the argument as a whole seeks to explain; the second provides a statement that the argument as a whole seeks to establish.
The first describes the circumstance
Yes. We can call it a current situation or circumstance.
that the argument as a whole seeks to explain;
No. The purpose of the argument is not to explain why there is hardly any data available.
the second provides a statement
Yes.
that the argument as a whole seeks to establish.
No. The second boldface is a fact. The argument cannot establish a fact. The fact is being used to establish the main conclusion.
Thus, this is not the correct answer choice.B) The first describes the position that the argument as a whole seeks to establish; the second does not dispute that position.
The first describes the position
No. It states an observation and not a conclusion or position taken by someone.
that the argument as a whole seeks to establish;
No. This is not the main conclusion of the argument.
the second does not dispute that position.
Yes. BF2 does not go against BF1 although it is not a conclusion.
Thus, this is not the correct answer choice.
C) The first describes the evidence in support of the main conclusion of the argument; the second states that conclusion.
The first describes the evidence
Yes. Since this fact or observation has been used to support a conclusion, we can call it evidence.
in support of the main conclusion of the argument;
Yes.
the second states that conclusion.
No. BF2 is a fact and not the main conclusion.
Thus, this is not the correct answer choice.
D) The first is the position that the argument as a whole opposes; the second provides evidence against the position being opposed.
The first is the position
No. It is an observation, not a conclusion and so cannot be called a position.
that the argument as a whole opposes;
No. The argument does not go against this observation.
the second provides evidence
Yes. Since this fact or observation has been used to support a conclusion, we can call it evidence.
against the position being opposed.
No. BF2 does not go against BF1.
Thus, this is not the correct answer choice.
E) The first and second both state observations that support jointly the conclusion of the argument as a whole.
The first and second both state observations
Yes. They are facts observed by the author.
that support jointly the conclusion of the argument as a whole.
Yes. They support the main conclusion.
Thus, this is the correct answer choice.