Answer:
O A. 4
Explanation:
11 to 7 = 4
7 to 3 = 4
3 to -1 = 4
-1 to 5 = 4
Common difference = 4
It is A
If you look at it ecch one is moving by 4. -
5+4= -1
-1+4=3
7+4=11
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