Final answer:
The subject of this question is English, and the student is asked to compare President Lincoln's Gettysburg Address and Dr. Martin Luther King, Jr.'s "I Have a Dream" speech on the theme of American democracy.
Step-by-step explanation:
The subject of this question is English. The student is being asked to write an expository essay comparing President Lincoln's Gettysburg Address and Dr. Martin Luther King, Jr.'s "I Have a Dream" speech on the theme of American democracy. Both speeches are important historical texts that address issues of democracy, equality, and freedom in the context of American history.