Which of the Following Is Not a Valid Reason for Automating

Multiple Choice

Which of the following is not a valid reason for automating a test case?

A) the test will need to be executed once, but with a large set of data.
B) the test will help in saving time for doing exploratory testing.
C) the test is important for the business and typical use case for testing.
D) the test gives intermittent results and impossible to test manually.