Which are acid-base pairs according to the Brønsted‒Lowry theory?

I.     \({\text{HN}}{{\text{O}}_{\text{3}}}{\text{/NO}}_{\text{3}}^ - \)

II.     \({{\text{H}}_{\text{3}}}{{\text{O}}^ + }{\text{/O}}{{\text{H}}^ - }\)

III.     \({\text{HCOOH/HCO}}{{\text{O}}^ - }\)

A.     I and II only

B.     I and III only

C.     II and III only

D.     I, II and III

B