In lift every voice and sing, which of the following best expresses the theme of the entire poem? a) in order to maintain a healthy body and outlook, people should gather to walk and to sing as a way to encourage one another. b) a group of people who have a shared and difficult experience can move forward collectively toward a better future. c) it is necessary to enlist the of people in power in order to achieve goals in a timely manner. d) knowing what has occurred in the past can influence a group of people in developing better plans and goals.