Consider the following reactions.
$$PbCl_{2}+K_{2}CrO_{4}\rightarrow A+2KCI$$
(Hot solution)
$$A+NaOH\rightleftharpoons B+Na_{2}CrO_{4}$$
$$PbSO_{4}+4CH_{3}COONH_{4}\rightarrow (NH_{4})_{2}SO_{4}+X$$
In the above reactions, A, Band X are respectively.

A

$$PbCRO_{4},Na_{2}[Pb(OH)_{4}]\text{ and }[Pb(NH_{3})_{4}]SO_{4}$$

B

$$PbCRO_{4},Na_{2}[Pb(OH)_{4}]\text{ and }(NH_{4})_{2}[Pb(CH_{3}COO)_{4}]$$

C

$$Na_{2}[Pb(OH)_{4}],PbCRO_{4}\text{ and }(NH_{4})_{2}[Pb(CH_{3}COO)_{4}]$$

D

$$Na_{2}[Pb(OH)_{4}],PbCRO_{4}\text{ and }[Pb(NH_{3})_{4}]SO_{4}$$