Bases have a pH level below 7
B
Correct answer
Explanation
Bases have pH levels above 7, not below 7. The pH scale ranges from 0-14, with acids below 7 (0-6.99), neutral at 7, and bases above 7 (7.01-14). Substances like soap (pH ~10) and bleach (pH ~13) are bases with pH above 7.