Which is not a preposition? 1. after 2. near 3. under 4. who

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What is the effect of narrator's word choice on the tone of this passage? the words "my heart shrank within itself" create a fearful tone. the words "better-omened" set a hopeful tone. the words "wounded his fellow" develop a remorseful tone. the words "struck harsh upon my ears" suggest an irritated tone.

Which type of context clue does the author use to show the meaning of the word diplomats?