Why Was There So Much Opposition by Both the Union

Why was there so much opposition by both the Union and the Confederacy to having women serve as army nurses during the initial stages of the Civil War?

A) Nursing was perceived as an unsuitable profession for respectable women.
B) Women had little experience caring for people who had been struck by disease.
C) Nursing did not pay enough for a single woman to make a decent living.
D) Neither side had organized sanitary commissions to oversee nurses' work on the battlefield and in military hospitals.