They all relate to making something
illustration is word with double consonants
twenty five is hyphenated number word
barrier reef is word divided with syllables at end..
going is hyphenated adjective
brand new is hyphenated compound
Totalitarian Propaganda can controlled well educated people by conveying the regimes beliefs, almost forcing it down their subjects throats.
So when it works it usually shows an "Evil" or "Enemy" of the state, and obviously without proper methods of evaluating the truth decent people will believe it for example look at the DPRK or Iran.
The answer will be C (didn't mean to put the 2 star lol)
Theme I believe I haven't done that for awhile