ધારો કે $g(x) \neq 0, g^{\prime}(x) \neq 0, f(x) \neq 0, f^{\prime}(x) \neq 0$. જો $F(x)=f(x) g(x)$,$G(x)=f^{\prime}(x) g^{\prime}(x)$,$F^{\prime}(x)=G(x) H(x)$ અને $F^{\prime}(x)=F(x) K(x)$ હોય,તો $H(x)+K(x)=$

• A
  $\frac{f^{\prime}}{f}+\frac{f}{f^{\prime}}+\frac{g}{g^{\prime}}$
• B
  $\frac{f^{\prime}}{f}+\frac{g}{g^{\prime}}+\frac{g^{\prime}}{g}$
• C
  $\frac{f^{\prime} g^{\prime}+f g}{f f^{\prime} g g^{\prime}}$
• D
  $\frac{f^{\prime}}{f}+\frac{g}{g^{\prime}}+\frac{f}{f^{\prime}}+\frac{g^{\prime}}{g}$