A student is studying the life and work of the poet Phillis Wheatley, who lived during the American Revolution. Which of the following is an example of a secondary source that might be consulted for the study?

This diary represents a primary source, as it contains firsthand accounts and personal reflections from someone directly connected to Wheatley. Primary sources provide original evidence from the time period or subject in question, directly reflecting the experiences and views of individuals involved.

While historically significant, the Declaration of Independence is a primary document that outlines the founding principles of the United States. It does not specifically address Phillis Wheatley or her work; thus, it fails to serve as a secondary source regarding her life and contributions.

This poem is a primary source because it is an original work created by Wheatley herself. It provides direct insight into her thoughts and artistic expression but does not analyze or interpret her life and work, which is the characteristic of a secondary source.