\[{{H}_{3}}\overset{+}{\mathop{N}}\,-\overset{\overset{R}{\mathop{|}}\,}{\mathop{C}}\,\underset{(A)}{\mathop{H}}\,-COOH{{H}_{3}}\overset{+}{\mathop{N}}\,-\overset{R}{\mathop{\overset{|}{\mathop{C}}\,}}\,\underset{(B)}{\mathop{H}}\,-CO{{O}^{-}}\] \[{{H}_{2}}N-\overset{R}{\mathop{\overset{|}{\mathop{C}}\,}}\,\underset{(C)}{\mathop{H}}\,-CO{{O}^{-}}\] Which of the above is Zwitterionic form?