The correct option is
A A play cannot be comprehended fully without some knowledge and imaginative understanding of its context.
This is another tough question. This is a data based question where the answer has to be got by running through the entire passage.
Let us use process of elimination to choose the correct answer.
Option (b) - Look at these lines “His teaching is that beauty is a by-product of other activity”. He says that ‘Beauty is a by-product of other activities’. But this option says that the ‘Drama is a product of beauty’.
So Shaw need not agree to this option.
Option (c) - “Morality is immutable”. This statement is correct.
But the second half of the option “it is not something to be discussed and worked out” is not correct. Look at these lines in the last paragraph “Shaw, who has the courage of his historicism, consistently withstands the view that moral problems do not change”. Shaw himself has discussed regarding these views.
So Shaw need not agree to this option.
Option (d): Look at these lines in second paragraph -
“it follows that even the best works of art go out of date in some important aspects and that the generally held view that great works are in all respects eternal is not shared by Shaw”.
So Shaw need not agree to this option.
Option (a) is therefore correct. It is supported by the following lines in the first paragraph “that the artist writes out of moral passion (in forms varying from political conviction to religious zeal)”.