Correct Answer: Depressive

Solution : The correct choice is the third option.

Desolate refers to a place that is deserted, barren, or bleak, conveying a sense of abandonment and isolation. Depressive refers to something that causes or relates to feelings of sadness, hopelessness, or a low mood. It can be used to describe a situation, atmosphere, or state of mind that is marked by a sense of gloom or despair.

The meanings of the other options are as follows:

• Fortunate means lucky or favoured by fortune.
• Sturdy means strong, robust, or well-built.
• Hopeful means feeling or inspiring optimism.

Therefore, the correct answer is depressive.