8104. Ever since the death of his mother, my friend is utterly forlorn and wretched.

✅ The correct answer is option B.
Frustrated : feeling or expressing distress and annoyance resulting from an inability to change or achieve something.

Lonely : without companions; solitary.

Fearful : feeling or showing fear or anxiety.

Gloomy : dark or poorly lit, especially so as to appear depressing or frightening.

Forlorn : pitifully sad and abandoned or lonely.

Synonym of Forlorn is Lonely