What is the BEST representation of the basic formula for any monosaccharide?
A) CH2O
B) C2H2O
C) (CH2O)n, where n is 1 or 2
D) (CH2O)n, where n can be 3-7

D) (CH2O)n, where n can be 3-7

Explanation:

Monosaccharides are the simplest carbohydrate that has a formula of (CH2O)n where n at least have to be 3. Since its the simplest form,  monosaccharides can't be broken down into smaller carbohydrates.

If the number of n is less than 3, it won't become monosaccharides. A molecule with CH2O formula is called an aldehyde. That is why option C is wrong. The answer will be option D

yes, because even though a theory has a  lot of evidence to support it, it is not always true