Correct Answer: Depressed

Solution : The correct choice is the third option.

Explanation: "Jubilant" describes a state of extreme joy or happiness. An antonym is a word that means the opposite. In this case, "depressed" is the best antonym because it represents a state of low spirits, sadness, or feeling down.
The meanings of the other options are as follows:

• Happy means feeling or showing pleasure or contentment.
• Delighted means feeling great pleasure or satisfaction.
• Young means having lived or existed for only a short time.