Answer:
A. cannot form a hook because it then would be upward sloping.
Explanation:
As in the case when the indifference curve slopes upward so the consumer would be indifferent that lies between the two bundles that generate more of the consumption goods
Now in case when the curve is hook sloping upward so the preference of the consumer could violate the assumption i.e. the more it is , the better it is
Therefore the option A is correct