Final answer:
The answer is C) Pipeline Steps / Validation Rule / User Story / Permission Set. This refers to the configuration of user permissions within software development platforms, where specific pipeline steps are granted to a user based on validation rules tied to a user story within a permission set.
Step-by-step explanation:
The correct answer to the question Create permission set assignment: Assign ___ to specific ___ upon permission set ___ is C) Pipeline Steps / Validation Rule / User Story / Permission Set. A permission set in the context of computing, particularly in software development platforms like Salesforce, is a collection of settings and permissions that give users access to various tools and functions. Permission sets are assigned to users to grant them the necessary privileges to perform certain tasks without changing their primary profile. Specifically, you would assign Pipeline Steps to a specific Validation Rule upon a User Story within the context of a permission set assignment.