All the following are Bronsted-Lowry conjugate acid-base pairs, EXCEPT
q,
A.
H_(2)S(O_(4))/(H)SO_(4)^(-)
B.
HS(O_(4)^(-))/(S)O_(4)^(2-)
C.
HN(O_(3))/(H)NO_(2)
HB(r)/(B)r^(-)
E.
H_(2)(O)/(O)H^(-)