Multiple choice general knowledge WHICH ONE AMONG THE FOLLOWING OPTION WILL NOT COME UNDER VNU TREE NIELSEN CLARITAS IRI SPECTRA Reveal answer Fill a bubble to check yourself C Correct answer Explanation VNU (Verenigde Nederlandse Uitgeversbedrijven) acquired Nielsen and its subsidiaries including Claritas and Spectra. IRI (Information Resources Inc.) was a separate market research company and competitor, not under the VNU corporate tree.