In the question below, three statements are given which may or may not contain an error in any part of the sentence. Identify the statements containing an error and also point out the part containing the error.

I) There are many unique inventions (A) spanning the ages, aircraft are (B) among the notable few.(C) Aircraft has flown people all around the world. (D)

II) The demons infested (A) the underworld like (B) a swarm; these vermin (C) have destroyed all hopes of peace. (D)

III) Counsel were elated to be (A) home after (B) a long trip, initially, (C) the counsel's posting was in Ibiza. (D)