Dr. Menteur runs a study in which infertile women are given injections of a synthetic hormone in hopes it will cause them to ovulate. Unknown to the women, the injections also contain a chemical that is hypothesized to increase the chance that fertilized eggs will implant in their uteruses. None of the participants experience any negative side effects from this second chemical, and more of the women become pregnant than in previous studies using just the hormone. The women are not paid for participating in the study, although they receive the treatment for no cost. This study is:

The correct answer is - unethical, because the women were not informed injections would contain the second chemical

Explanation:

No matter what was the result of a study and or treatment of the subject is charged or not but including the patient or subject and giving treatment without permission is unethical.

In this case, Dr. Menteur did not ask or informed the women that injection would contain a second chemical and what it does and what were pro and cons of this treatment.

Thus, the correct answer is - unethical, as women were not informed that injections would contain the second chemical

explanation:

for example, code 28039 - excision, tumor, soft tissue of foot or toe, subcutaneous, 1.5 cm or greater, appears before 28043 - excision, tumor, soft tissue of foot or toe, subcutaneous; less than 1.5 cm.