The answer among the four choices is the third one, choice letter C.
When Louis Pasteur, a man who started out as a research chemist, let<span> nerve tissue from sick animals stand for a few days, the nerve tissue became weak.</span>
You need a period after the first sentence. You also need an exclamation mark after Ahoy.
I believe you're referring to "A Raisin in the Sun, " right?? If so, these words might symbolize Walter's wife's lack of support for him.
