What was miss evers initial reason for participating in the study ? "miss evers' boys"

Miss Evers' initial reason of participating in the study was to help the sick men, some of whom were her friends.

Explanation:

"Miss Evers' Boys" was a play written in 1992 by David Feldshuh about the Tuskegee syphilis experiment undertaken by the U. S. Public Health Service on poor black men.

"The Tuskegee Study" as it was commonly known, was a clinical study in 1932 that uses black syphilis patients as trial runs for finding the antidote. Blacks were discriminated based on their skin color and being assumed inferior, they were used as lab rats for this experiment. Miss Eunice Evers was a medical nurse who had known about the mistreatment of blacks but still decided to join the study. Most of the patients were her friends, or known associates of hers. So, in order for her to help these men, she volunteered herself. But this "treatment" was just a cover for the real intention of the government's plans. The real intention was to do a study of this syphilis infection and to look for a cure without the need to harm white "superior" people.

"d.) carbon dioxide and hydrogen sulfide"