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# Intersection of Two Sets

GMAT-G1KEXX

Set $W$ consists of numbers ${-30, 10, 20}$. Set $V$ consists of numbers ${-20, -10, 30}$. How many numbers are in the intersection of Set $W$ and Set $V$?

A

$0$

B

$3$

C

$6$

D

$9$

E

$12$