https://whatsapp.com/channel/0029Va81q0TLtOj8Und0ua0l/4094 *Explaination:* `Option B is correct.` `It is a noun.` `دو پیروں والا جانور .` > An animal that uses two legs for walking OR Like a human, an ostrich is a biped or two-footed animal. *Examples:* 1) The iconic predator Tyrannosaurus Rex was a biped. 2) Physically they are bipeds who strongly resemble big cats. 3) The audience enjoys watching the lion stand like a biped using its two rearmost feet. 4) A biped is a creature with two legs. 5) I would be happier if we knew it was a biped.