There is loads of choices so I could not really tell what the best one is. Although I wouldn't know because I'm a guy so I cant really tell what the best one is. I did look that question up and loads showed up on the right of my screen.
Sorry
Human blood, which has a ph of approximately 7.4, is a/an _______ substance.
- Alkaline substance.
the answer is B my mom is a doctor and she helped me on this once
