Task: Question Answering
Input (English): How the consent to be bound of a State may be expressed?
(A)The consent of a State to be bound is expressed only by ratification (B)The consent of a state to be bound by a treaty may be expressed by signature, ratification, acceptance, approval or accession (C)The consent of a State to be bound is expressed by signature (D)The consent of a State to be bound is expressed by whatever means they choose
Output (English): B