Pa is ashamed of himself because he’s irritated by the fact that Noah is quiet and slow, in contrast to Ma, who has unconditional love for al members of her family.
D is the answer because the verb is dripping due to fact that that's the action and the mood is indicative because indicative means revealing and it reveals that the dripping paintbrush will get paint on you if you're not careful.
Some examples of similes from 'Letters from Birmingham Jail':
<span>"Like a boil that can never be cured so long as it is covered up but must be opened with all its ugliness to the natural medicines of air and light, injustice must be exposed...."
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<span>"Asia and Africa are moving with jetlike speed..."
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