The question specifically asks for a class to define discrete hyperparameters as a list of predetermined, comma-separated integer values. According to the Azure Machine Learning documentation and the community discussion with high upvotes (5 and 4 upvotes), the Choice class from azure.ai.ml.sweep is designed for discrete hyperparameters and supports specifying a list of predetermined values, including integers. The community consensus strongly favors Choice (86% of answers), with detailed reasoning citing Microsoft documentation that confirms Choice can handle discrete values like comma-separated integers. Randint (option B) is incorrect because it generates random integers within a range rather than a predetermined list, and Uniform (C) and Normal (D) are for continuous distributions, not discrete lists.