Answer:
B) To configure and set up software applications on a computer
Explanation:
A software installer can be described as a program used for implementing and installing applications in a computer. Its main purpose is to help the user to organize the installation process, that is, to copy various files to directories, modify system parameters, and fulfill requirements and dependencies if any. These steps are fully automated by a software installer, which makes the procedure of introducing a new application into a system very easy.
Therefore, the correct answer option is B).