Kubera was the brother of Ravana
B
Correct answer
Explanation
Kubera and Ravana were half-brothers who shared the same father (sage Visrava) but had different mothers - Kubera's mother was Idavida while Ravana's was Kaikesi. Kubera was the original ruler of Lanka and the god of wealth before Ravana ousted him. Therefore, stating they were brothers (without the half- prefix) is technically false.