Which option correctly shows the concentration of H3O+ ions in pure water?

A. 1.0 × 10-7 mol/L
B. 1.0 x 10-14 mol/L
C. 7 mol/L
D. 14 mol/L

B. 1.0 x 10-14 mol/L

The correct option that shows the concentration of H3O+ ions in pure water is B. 1.0 x 10-14 mol/L.