The correct answer to the question "In what way did Quakers promote equality for women?" is:
E. They allowed women to preach.
Quakers, also known as the Religious Society of Friends, played a significant role in promoting equality for women by allowing them to preach. Quaker beliefs emphasized the equality of all individuals, regardless of gender, which was quite progressive for the time period. Women in Quaker communities were given the opportunity to speak publicly and share their religious insights, which was not common in many other religious groups at that time. This practice of allowing women to preach helped to empower women within Quaker communities and promote greater gender equality.