Select the economic system that is best described in the source. $*$

Supporters of the system$($s$)$ argue that through regulation of private businesses, public ownership of some important areas of the economy, progressive taxes to narrow income gaps, and a social welfare system to prevent extreme economic insecurity, stability is achieved.

Characteristics of a free market $($classical liberal$)$ economic system

Characteristics of a mixed economic system

Characteristics of a command $($Marxist$)$ economic system

Characteristics of a free$-$market, mixed, and command economic system