Which quotation from "about russell" best supports the inference that the author is worried about her brother's welfare? "i was just so my brother would give me the time of day." "a nickname! actual friends! rosalind and i thought. we were thrilled russell had come out of his shell." "russell didn't talk, let alone look at me. the chess set was still standing there, pieces and all." "in our minds, russell’s future was bright and without limitation, starting with a full scholarship to mit or northwestern."

The quotation from About Russell that best supports the inference that the author is worried about her brother's welfare is the third one: "Rusell didn't talk, let alone look at me. The chess set was still standing there, pieces and all".

Explanation:

In these lines, the author expresses her concern when she describes her brother's attitude, when she says "Rusell didn't talk, let alone look at me" she is describing a person who isn't even capable of looking in the eye to another one, isn't capable of talking with someone close to him and this is a very serious issue, it demonstrates that he is not well.

No the answer is "A nickname! Actual friends! Rosalind and I thought. We were thrilled Russell had come out of his shell."

yes, they are. i think.