Correct Answer - Option 1 : Alexander would not have turned his attention towards India had he not conquered Persia.
Explanation:
'A' ‘Turned his attention’ means that since Persia was conquered now he felt the desire to conquer some other territory. So ‘A’ is valid and can be inferred from the above sentence.
‘B’ is ambiguous and can’t really be validated
‘C’ too seems not very clear, because being a king who had already marched against many kingdoms, he definitely must have had control of his army, though if history is read further his army had revolted after his fight with the Indian king Porus.
‘D’ This too is not logically valid as
it may or may not have been the reason as Persia did not extend to the Indian borders if history is to be believed.