Answer
$II, III, IV, V, VI, VII$
Work Step by Step
The regions $II, III, IV, V, VI, VII$ represent $B\cup C$ because all of those regions are either in $B$ or in $C$.
Thinking Mathematically (6th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0321867327
ISBN 13:
978-0-32186-732-2
Chapter 2 - Set Theory - 2.4 Set Operations and Venn Diagrams with Three Sets - Exercise Set 2.4 - Page 92: 28
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