Hi janet1511,
Here's my explanation:
-------------------------
Premise 1: A person who is a concert pianist with a major orchestra is famous.
Premise 2: She is not famous.
Conclusion: She is not a concert pianist.
Let us solve this using Venn diagram. Consider a circle called '
Famous'. Another circle called 'major orchestra' (
MAJ_ORCH). Let there be a third circle called 'minor orchestra' (
MIN_ORCH).
Now according to premise
1, we can visualize the circle
MAJ_ORCH completely inside the circle called '
Famous'. This is so because
any person who is a concert pianist with a major orchestra
IS famous. There is
NO concert pianist with a major orchestra who is not famous. Everyone is!
Premise
1 does not say that '
A concert pianist who is NOT associated with a major orchestra cannot be famous'.
Even they can be famous. We'll use this to show that
option D was something that the author did not consider to arrive at the conclusion.
Now if we consider option D, we can safely think of a circle
MIN_ORCH, which
intersects (
not overlaps) another circle
Famous.
This 'intersection' denotes that concert pianists who are working with 'minor orchestra' (MIN_ORCH) comprises 'Famous' & 'Not Famous' people.
Let Sarah be associated with 'minor orchestra' group. Now
since premise 2 states that Sarah is not famous, she'll be a part of the circle MIN_ORCH, which is not common with the 'Famous' circle i.e.,
Sarah is a part of 'minor orchestra' and is NOT famous.
(A) Sarah could be a famous actress. ---> Not relevant.
We should not change Sarah's occupation. Let her be pianist for the time being.
(B) Sarah could be a harpist for a major orchestra. ---> Not relevant.
Why harpist? She is fine as a pianist.
(C) Sarah could be a pianist with a rock group. ---> So what? Even if she's with a rock group, how does it, in any way, make the conclusion unsound?
(D) Sarah could be a concert pianist with a minor orchestra. ---> Explained above
(E) Sarah could be famous for another reason. ---> Sarah is 'not' famous for any other reason as Premise
2 clearly rules this out. So, we can discard this out.
My choice is option
D.
Hope that helps.
Regards,
Technext
_________________
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