Which statement on workflows is correct?
A. In a default configuration, a workflow must contain at least one session task
B. A workflow can contain multiple start points
C. In a default configuration, a workflow parameter file overrides all parameter files in underlying sessions
D. Another workflow cannot be executed from within a workflow
C is correct
Ref: https://docs.informatica.com/data-integration/powercenter/10-2/advanced-workflow-guide/parameter-files/configuring-the-parameter-file-name-and-location/using-a-parameter-file-with-workflows-or-sessions/using-variables-to-specify-session-parameter-files.html