Art a: which statement expresses the central idea of the text?

a
walker’s accomplishments and views on women’s rights were beyond what many people could accept during her time.
b
walker’s refusal to give up the medal of honor encouraged the revision of the requirements for the award.
c
walker’s actions as a military surgeon changed how the united states army viewed women’s participation during times of war.
d
walker’s active role in women’s rights prompted other women to challenge women’s clothing and gender roles.