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Doubt in K&B exam

 
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The answers are: A, B, D, E. I agree with A,B,D but cant understand option E. How can a list be receiving something of type T and be returning its supertype??. Isnt that like accepting a Dog into the list and returning an Animal. How and when would such a situation ever arise??
 
Amit Batra
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Any takers at all?
 
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