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A, B and C are the three elements, each one of them belongs to any one of the group IA, IIIA and VA. The oxide of \( \mathrm{A} \) is amphoteric in nature, the oxide of \( \mathrm{B} \) is highly acidic in nature, the oxide of \( \mathrm{C} \) is highly basic in nature. These elements \( \mathrm{A}, \mathrm{B} \) and \( \mathrm{C} \) belong to which group?
\( \begin{array}{ccc}\text { A } & \text { B } & \text { C } \\ \text { a. VA } & \text { IA } & \text { IIIA } \\ \text { b. VA } & \text { IIIA } & \text { IA } \\ \text { - c. IIIA } & \text { IA } & \text { VA } \\ \text { - d. IIIA } & \text { VA } & \text { IA }\end{array} \)
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