List the Set in Roster Form $S = \{ x \mid x \text { is and integer between } 3 \text { and } 4 \}$

Multiple Choice

List the set in roster form.
- $S = \{ x \mid x \text { is and integer between } 3 \text { and } 4 \}$

A) {3}
B) {3, 4}
C) $\left\{ \frac { 7 } { 2 } \right\}$
D) { }