There is no such phrase as “comprised of”! Never put of with comprise. Write that on your palm in ink, please.
“The whole comprises the parts; the whole is composed of the parts.”Or: The whole comprises the parts; the parts compose the whole.
Either of these is correct:The alphabet comprises twenty-six letters.The alphabet is composed of twenty-six letters.
A couple of tests to see if youve got the usage correct:~ comprises = is composed of~ you can substitute includes for comprises.