Multiple choice question on $\limsup x_n$ and $\liminf$

Question

Let $x_n = \left(1−\frac{1}{n}\right)\sin(\frac{nπ}{3})$ for $n \ge 1$. Denote $l=\liminf x_n$ and $s=\limsup x_n$. Then

1. $l \ge -\sqrt{3}/2$
2. $s \le \sqrt{3}/2$
3. $l \ge -1/2$
4. $s \le 1/2$

I am not able to find the limit here, please help with this.