JEE Main Chemistry question

For the reaction, H₂(g)+I₂(g)⇌2HI(g) at 720 K, the value of equilibrium constant is 50, when equilibrium concentration of both H₂ and I₂ is 0.5 M. Kp under the same conditions will be:

• (A)0.02
• (B)0.2
• (C)50Correct
• (D)50 RT