Special and General Linearity

Let $\mathbb{F}_q$ be the field with $q$ elements and for $n \ge 1$ , Let $\text{GL}_n(\mathbb{F}_q)$ represent the General linear group and $\text{SL}_n(\mathbb{F}_q)$ be the Special linear group of $n \times n$ matrices then which of the following is true?

$\mid A \mid$ represents the number of elements in $A$ $$ Provide/Write a legitimate solution whatever the answer may be