Answer:
A.) B
Step-by-step explanation:
Jean-Paul Sartre was a french phillosopher that influenced marxism into its humanist form, and the existensialism, he was as well a nobel prize winner and decliner. In the library of congress the catalog of books is arranged by great themes, and in letter B you can find Phillosophy, Psychology and Religion, so the researcher would have to go to the B section in order to find literature by Jean Paul Sartre.