Which of the following are NOT polynomials? (i) \[2{{x}^{2}}+12\sqrt{x}-5\] (ii) \[3{{x}^{8}}-10{{x}^{2}}+6{{x}^{5}}-5x-2\] (iii) \[7{{x}^{4}}-3{{x}^{3}}+\frac{10}{{{x}^{2}}}-6x+4\] (iv) \[8{{x}^{4}}-6{{x}^{2}}+10x-7\]

• A.  Only (i) and (ii)                
• B.  Only (ii) and (iii)
• C.                         Only (i) and (iv)  
• D.               Only (ii) and (iv)