I Bielieve your answer is <span>b.to surround himself with loyal supporters
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<span>c. she knows that the guards are watching her closely.</span>
I'm using these with my vocabulary term book, so i'm answering the question based off the definitions provided for me.
Absurd - Ridiculous
I would say their not similar
Accede - <span>agree to a demand, request, or treaty.</span>
Here is you answer hope it helps