Which of the following was Mary Walker's contribution during the Civil War?

Answer 1: She was arrested six times as the most notorious Confederate Spy
Answer 2: She was a surgeon who was awarded the Medal of Honor after being captured by Confederate Forces
Answer 3: She led the U.S. Sanitary Commission and started the Red Cross.
Answer 4: She organized more than 3,000 nurses in Union Hospitals

Answer 2: She was a surgeon who was awarded the Medal of Honor after being captured by Confederate Forces

Mary Walker's contribution during the Civil War was as follows:

Answer 2: She was a surgeon who was awarded the Medal of Honor after being captured by Confederate Forces.

To determine Mary Walker's contribution during the Civil War, we can analyze the given options:

Answer 1: She was arrested six times as the most notorious Confederate Spy - This option suggests that Mary Walker was a Confederate spy who was apprehended multiple times. However, this is not an accurate contribution for Mary Walker.

Answer 2: She was a surgeon who was awarded the Medal of Honor after being captured by Confederate Forces - This option states that Mary Walker was a surgeon who received the Medal of Honor after being captured by Confederate forces. The Medal of Honor is a prestigious military award, and being recognized for her medical contributions is a significant contribution during the Civil War.

Answer 3: She led the U.S. Sanitary Commission and started the Red Cross - This option suggests that Mary Walker led the U.S. Sanitary Commission and initiated the Red Cross. While leading such organizations would indeed be a notable contribution, these achievements are generally associated with Clara Barton, not Mary Walker.

Answer 4: She organized more than 3,000 nurses in Union Hospitals - This option mentions that Mary Walker organized over 3,000 nurses in Union hospitals. If Mary Walker indeed played a significant role in organizing nurses during the Civil War, this would be a notable contribution.

Based on the analysis, the most accurate answer to Mary Walker's contribution during the Civil War would be Answer 2: She was a surgeon who was awarded the Medal of Honor after being captured by Confederate Forces. However, it's important to note that she did not receive the Medal of Honor until after the war.