If someone got an A on their exam, then they must have studied hard.
If someone studied hard, then they will feel proud of whatever they accomplish.
Thus, if someone get an A on their exam, then they will feel proud of whatever they accomplished.
Answer: If you assume that the conditional and fact above are true, must the conclusion also be true?
Yes, the conclusion must be true if the conditional and fact are true.
No, the conclusion might be false even if the conditional and fact are true.