Sagot :
4. A blank. has two components; the solute and the solvent.
a. Solution
b.pure substance
c. solution
d.mixture
Explanation:
Pure substance are made up of only one particles, while mixture can exist even without the presence of a solute and a solvent. A and C are the same but technically, solution cannot be in capital letter because it is not a noun nor it is the starting word in the sentence. Thus, C is more appropriate.