selective information vs communication theory

selective information and communication theory both are nouns.

Word	Noun	Adjective	Verb	Adverb
selective information	Yes	No	No	No
communication theory	Yes	No	No	No

selective information (noun)	communication theory (noun)
(communication theory) a numerical measure of the uncertainty of an outcome	the discipline that studies the principles of transmitting information and the methods by which it is delivered (as print or radio or television etc.)