The SysTest framework in Dynamics 365 Finance and Operations uses attributes to add metadata to test classes and methods. This metadata is used by the test runner to discover, filter, and organize tests. The SysTestOwnerAttribute (Owner) specifies the author or owner of the test. The SysTestPriorityAttribute (Priority) sets the execution priority for the test case. The SysTestPropertyAttribute (Test Property) allows for adding custom key-value pair metadata to a test, which can be used for advanced filtering or categorization. These three are all valid attributes for defining a test class.

B. EntryPoint: The EntryPoint attribute is used to designate the main method for a runnable class (job) or a service operation, not for defining a test class within the SysTest framework.

E. TestFilter: SysTestFilter is a class, not an attribute. It is used programmatically to create filters that determine which specific tests should be executed by the test runner.

1. Microsoft Learn. "SysTest framework." Finance and Operations apps development documentation. Under the section "Test case attributes," the document explicitly lists SysTestOwnerAttribute, SysTestPriorityAttribute, and SysTestPropertyAttribute as attributes that can be applied to test cases. It does not list EntryPoint or TestFilter as attributes for this purpose.