Answer:
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C.drew a coat over his shirt
The most immediate action Ivan Jakovlevitch does to show his propriety is to put on a coat. In this instance, we need to assume the coat is not a jacket you wear outside to ward off the cold, but rather part of a suit. By putting on the coat, he is dressing in a more proper and formal manner. He is following the social rules of the occasion. Propriety means to follow or conform to the social rules and behaviors of a situation.
changing "it's" to "it is"
The quote portrays a truth of humanity that we, as humans, don't like to admit to. People are not always going to be able to prevent injustice - we won't always see abuse or crime, we don't always notice inequality, unfairness and prejudice won't always be preventable, and we have to admit to that. If people see an injustice, we must not "fail to protest." Protesting may be in the littlest forms, like refusing to join in with bullying or something bigger, like marching in a woman's march to prove your point. Protest is necessary to stopping injustice where we may not be able to otherwise. Not everyone can fly around in a cape like superman but we can protest injustice when we feel powerless.
