What happens after a stock split? More than one answer may be correct.

Multiple select question.

The number of shares authorized, issued, and outstanding increase proportionately.

No accounting entry is required.

Existing stockholders receive additional shares of stock in ratios such as $2$:$1$ or $3$:$1$ or $4$:$1($as some common examples$).$

The par value per share of the company's stock would double in a $2$:$1$ split $($as an example$).$

The total market value of the company's outstanding stock will double in a $2$:$1$ split $($as an example$).$