If a proposition is true, then we say it has a truth value of "true"; if a proposition is false, its truth value is "false". For example, "Grass is green", and "2 + 5 = 5" are propositions.
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Answer: A. Explicit.
Explanation: Explicit means something fully revealed or expressed without vagueness, implication, or ambiguity, it is the opposite of implicit (something suggested but not communicated directly). So the definition "words or ideas that are clearly expressed and leave no question as to their meanings" is referring to the meaning of "explicit", therefore the correct answer is the corresponding to option A.
Macbeth's tragic flaw, as revealed in act 1, is Ambition. He is so ambitious that he will stop at nothing to achieve his goals, which is seen later during the play.