Which of the following is the correct order for increasing pHs for equimolar solutions of HNO3, KCl, NH4Cl, KOH, and NaC2H3O2? ($K_a$ for $HC_2H_3O_2$ is $1.80 \times 10^{-5}$, $K_b$ is $5.56 \times 10^{-10}$).
KCl, NH4Cl, HNO3, KOH, NaC2H3O2
HNO3, KCl, NH4Cl, KOH, NaC2H3O2
NH4Cl, HNO3, KCl, KOH, NaC2H3O2
HNO3, NH4Cl, KCl, NaC2H3O2, KOH
none of these