Dana is nervous about the upcoming physics exam she is the only in the class and has achieved higher scores on the assignments than most of the boys in class she knows the boys thinks they're smarter and better at applying principles of physics in this situation dana's nervousness is an example of:

stereotype threat

Explanation:

Stereotype threat is a phenomenon that refers to the perceived risk of an individual to act according to a particular norm or convention that are attached to a particular social group. In order words, it simply refers to fear of the tendency of an individual to confirm the belief that most people in a society have concerning what they expect of a particular social group. As a result of this fear and anxiety, the person is likely to act according to such expectation attached to the social group they belong., especially a negative stereotype.

For example, a negative stereotype such as the believe that boys are smarter and better at applying principles of physics, is likely to affect Dana’s performance in the upcoming physics exam, as she is disturbed by this belief. This might eventually make her perform badly in the exam. The nervousness she feels in this situation  an example of stereotype threat.

the answer is solomon northrup. he was a free-born african american, abolitionist and professional violinist that was drugged, kidnapped and sold as slave in 1841 and remained in captivity until 1853 where he regained his freedom with the of the then-governor of new york, washington hunt. he wrote and published his memoirs "twelve years a slave" in 1853, and in this text, he tells the story of his escape thru one of louisiana's swamps (the great pacoudrie swamp) in which he ended up covered in green slime from crossing the surface of the dead water.