Answer:
C.{2,3,4,6,7,8}
Step-by-step explanation:
Determine XUY={1,2,3,4,5,6,7,8}
Determine YUZ={2,3,4,6,7,8,9,10}
Find their intersection={2,3,4,6,7,8}
XUY ={2,3,4,6,7,8}
YUZ ={2,3,4,7,8}
That is the answer and sorry because your pic is blurry.
