The correct option is
D Since this is the gift that all children in Olga's family receive for graduation, it is not generous So condition (b) is violated. So the gift is not generous. So (d) is the correct answer
Let us analyse the stem of the question
Gift is generous if
a) benefits the recipient and
b) Worth more than is expected or customary in the situation. So if condition (a) or (b) is not satisfied then the gift is not generous and only if (a) and (b) conditions are satisfied then the gift is generous.
Also the gift is selfish if
a) benefits the giver or
b)Less Valuable than is customary
The tickets are expensive (condition (b) satisfied ) and his cousin loves operas (condition (a) satisfied). So the gift is generous. Moreover it does not satisfy the conditions for the gift to be selfish SO option (a) is wrong
The health club membership does not benefit the giver (Emily) neither is it less valuable than is customary So it is not selfish. So (b) is wrong
The bottles are expensive (condition (b) is satisfied) but there is no mention how the bottles are going to benefit her clients So the gift is not generous. So option (c) is wrong
Since this is the gift that all children in Olga's family receive for graduation, it is not generous So condition (b) is violated. So the gift is not generous. So (d) is the correct answer