Which of the following terms refers to proprietary software that is provided to users without payment on a trial basis and is often limited by any combination of functionality, vailability or convenie

Spyware is malicious software designed to gather information about a user or organization without their knowledge, not a software licensing model.

Shareware is a type of proprietary software that is distributed free of charge on a trial basis, typically for a limited time or with limited functionality, to encourage users to purchase the full version.

Freeware is proprietary software that is available for use free of charge, with no trial period or functionality limitations, though typically with restrictive licensing terms.

Adware is software that automatically displays or downloads advertising material to a computer, often bundled with other software, and is not a licensing model for trial use.