A double-ended queue allows

a) adding elements at one end and removing them from both ends
b) adding elements at both ends and removing them from one end
c) adding elements at one end, removing them from the other end, and viewing (first) elements at either end.
d) adding, removing, and viewing elements at either end.
e) none of the above


d) adding, removing, and viewing elements at either end.

Computer Science & Information Technology

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