Your answer is most likely:
D.
Answer:
i just got this link check if it is the correct link for your answer
Explanation:
https://openjicareport.jica.go.jp/pdf/12112280_02.pdf
The correct answer is bipolar disorder.
This type of a disorder is characterized by rapid change of moods - one day, a person might feel depressed and very sad, and the other, they might be experiencing extremely elevated moods. This is what happened to Marco in the case above - so he might need to start seeing a therapist or taking medicine.