Answer: A. exhilaration
Explanation:
We will look at the words' definitions and see which fits with the given context. All definitions below come from Oxford Languages.
A. exhilaration
➜ "a feeling of excitement, happiness, or elation."
B. absolve
➜ "set or declare (someone) free from blame, guilt, or responsibility."
C. conviction
➜ "a formal declaration that someone is guilty of a criminal offense, made by the verdict of a jury or the decision of a judge in a court of law."
➜ "a firmly held belief or opinion."
D. constitution
➜ "a body of fundamental principles or established precedents according to which a state or other organization is acknowledged to be governed."
The only answer option that describes how someone graduating from high school, that may be cut off by the realzation of college, is answer A:
Graduating from high school comes with a brief exhilaration ("feeling of excitement, happiness, or elation") until you realize you have four more years of college.