Answer:
A) 3
Step-by-step explanation:
We have
[tex]S = x<4 = (-\infty, 4)[/tex]
Once
[tex]6, 5, 4.5 \notin S[/tex]
but
[tex]3\in S[/tex]
The answer is 3.
<----|----|----|----|----|----|----|----|----|----|----
-3 -2 -1 0 1 2 3 4
Hope this helps
