10. The real solution of equation 2° +(12+1)* = ( 7+212)*' is-
(A) Natural number but not prime
(B) Composite natural number
(C) Rational number
(D) Integer

10. The real solution of equation 2° +(12+1)* = ( 7+212)*' is-
(A) Natural number but not prime
(B) Composite natural number
(C) Rational number
(D) Integer