Consider the following reactions. From these reactions which reaction will give carboxylic acid as a major product?
(A) $\mathrm{R}-\mathrm{C} \equiv \mathrm{N} \frac{\stackrel{\text { (i) } \stackrel{+} {H} / \mathrm{H}_{2} \mathrm{O}}{\text { mild condition }}}{}$
(B) $\mathrm{R}-\mathrm{MgX} \xrightarrow[\text { (ii) } \mathrm{H}_{3} \mathrm{O}^{+}]{\text {(i) } \mathrm{CO}_{2}}$
(C) $R-C \equiv N$
(D) $\mathrm{R} \cdot \mathrm{CH}_{2} \cdot \mathrm{OH} \xrightarrow{\mathrm{PCC}}$
(E)
Choose the correct answer from the options given below :
