Proper Noun and Common Nounव्यक्तिवाचक संज्ञा और जातिवाचक संज्ञा

In the sentence "Ramesh is a boy," which word is the common noun?"Ramesh is a boy" वाक्य में कौन-सा शब्द common noun है?

• Ramesh
• boy
• is
• a