Which of the following is a set:

$($Select all that apply$)$

The following checkbox options contain math elements, so you may need to read them in your screen reader's $$reading$$ or $$browse$$ mode instead of $$forms$$ or $$focus$$ mode.

Choice $1$ of $5$:the

$$

A in the statement

$$

in

$$

x in A

Choice $2$ of $5$:the

$$

x in the statement

$$

in

$\{$

$1$

$,$

$2$

$,$

$3$

$\}$

x in $\{1,2,3\}$

Choice $3$ of $5$:the

$$

x in the statement

$$

in

$\{$

$\{$

$1$

$,$

$2$

$,$

$3$

$\}$

$\}$

x in $\{\{1,2,3\}\}$

Choice $4$ of $5$:

$\{$

$$

$$

$$

$>$

$0$

$\}$

$\{$x$$x$>0\}$

Choice $5$ of $5$:

$($

$1$

$,$

$2$

$,$

$3$

$)$

$(1,2,3)$