It runs at night and generates a nightly build from the files in the version control system is incorrect. The 'C' in CI means the pipeline runs continuously and generates a new build when files are pushed or merged into the version control system.
It deploys applications into cloud environments is incorrect. The CD pipeline deploys applications.
It builds cloud infratructure (CI) from infrastructure-as-code files is incorrect. CI stands for Continuous Integration, not Cloud Infrastructure.
It builds applications continuously from the files in the version control system is correct