Which of the Following Indicates the Most Basic Solution?
A)[H⁺] $\times$

Multiple Choice

Which of the following indicates the most basic solution?

A) [H⁺] = 1 $\times$ 10^-10 M
B) pOH = 6.7
C) [OH^-] = 7 $\times$ 10^-5 M
D) pH = 4.2
E) At least two of the solutions are equally basic.