Jacob, an application developer, developed an E$-$commerce website. He said hosted application on a cloud server as it saves costs and no personal maintenance is required. He opted for a cloud deployment model that provides services for free, and the application is accessible to everyone over the Internet. Which of the following cloud deployment models has Jacob employed in the above scenario?

$*$ public cloud.

$*$private cloud.

$*$community cloud.

$*$Multi cloud.