25 The requirement of _______ for patentability is to secure that the public is entitled to practice the invention according to a full and complete description of it in the specification, especially when the patent expires. Choose the one word that best completes the above sentence.
(A) novelty
(B) utility
(C) enablement
(D) nonobviousness

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統計： A(0), B(0), C(2), D(0), E(0) #1193934