I go with D.
1)The main stem of the arguement is......
Musical composers have generally made their most significant contributions to the musical canon before they reached the age of thirty.
2)possible explanation for the argument is...
It is commonly believed that this is the case because aging brings about a loss of cognitive ability and creative capacity.
3)now a contradicting finding is....
However, a study pointed out that a disproportionately large number of those composers who made their most significant contributions to the canon after the age of thirty became musicians at an older age than is generally the case.
4)possible explanation for the contradiction is...... (which in turn /in directly endorse the claim in the main argument)
Since by the age of thirty many composers have been engaged as musicians for a decade or more, these findings suggest that the real reason why musicians over thirty rarely make significant contributions to the musical canon is not that they have aged but rather that they have spent too much time as musicians.
Ans D suits the format from 1 to 3 ....(which includes both of the highlighted stmts.)
1)The main stem of the arguement is......
Musical composers have generally made their most significant contributions to the musical canon before they reached the age of thirty.
2)possible explanation for the argument is...
It is commonly believed that this is the case because aging brings about a loss of cognitive ability and creative capacity.
3)now a contradicting finding is....
However, a study pointed out that a disproportionately large number of those composers who made their most significant contributions to the canon after the age of thirty became musicians at an older age than is generally the case.
4)possible explanation for the contradiction is...... (which in turn /in directly endorse the claim in the main argument)
Since by the age of thirty many composers have been engaged as musicians for a decade or more, these findings suggest that the real reason why musicians over thirty rarely make significant contributions to the musical canon is not that they have aged but rather that they have spent too much time as musicians.
Ans D suits the format from 1 to 3 ....(which includes both of the highlighted stmts.)
