Answer:
She helped to boost morale during the winter at Valley Forge
Step-by-step explanation:
Martha Washington was the wife of George Washington. She took an active role in the affairs of George Washington during the American Revolutionary war between 1775 to1783, most especially at the camp.
During this period she served as George Washington's close confidant, Secretary, and sometimes representing him in some formal events.
She also helped to boost morale during the winter at Valley Forge. This is evident when she was involved in creating social activities that elevate the mood in the camp by reassuring the sick and wounded soldiers.