A rapidly growing company wants to use a cloud service to provide all of its employees with access to a specific program. The company wants employees to be able to access the program via the internet without having to install applications on individual devices. Which cloud service model should be used?

IaaS provides virtualized computing resources over the internet, including servers and storage. While it offers flexibility and control over infrastructure, it requires users to manage and configure operating systems and applications, which contradicts the company's desire for a straightforward access model without installations.

PaaS provides a platform allowing developers to build, deploy, and manage applications without dealing with the underlying infrastructure. Although it supports application development, it is not suitable for delivering ready-to-use software to end users, which is the company's primary requirement.

FaaS is a serverless computing model that allows developers to run code in response to events without managing servers. This model is focused on executing specific functions rather than providing comprehensive software access, making it ineffective for the company's need to deliver a complete program to employees.