The Internal PH of Most Cells Is near Neutral

Multiple Choice

The internal pH of most cells is near neutral. This allows

A) water to break down into H⁺ and OH^-.
B) enzymes within the cells to act at peak efficiency.
C) the buffers produced within the body to affect these cells.
D) enzymes outside of these cells to function.
E) rapid fluctuations between acidic and basic conditions within the cells.