The correct answer is C) folorness.
According to Satre, the following term refers to the experience of God's nonexistence and the repercussions of the knowledge that we alone are totally responsible for our choices: folorness.
Jean-Paul Satre (1905-1980) was a French Existentialist philosopher and writer who won the Nobel Prize in 1964 but he declined it. He used the concept of folorness to refer to the idea that God does not exist and humans have to face the consequences of this fact. He also worked with two more concepts: anguish and despair. Anguish was the pressure that humans have to choose the way they want to live, and despair was the reckon of all possibilities we have before making a decision.
Satre wrote many books such as "Nausea" (1938), "Being and Nothingness (1943), and "Existentialism and Humanism" (1946).