To answer this question, you need to understand the implications of not specifying an expected result in a test case. Let's go through each option to understand why it is correct or incorrect:
Option A) We cannot run the test - This option is incorrect. Not specifying an expected result does not prevent us from running the test. We can still execute the test and observe the actual result.
Option B) It may be difficult to repeat the test - This option is incorrect. The ability to repeat the test does not depend on whether or not an expected result is specified. We can still repeat the test by executing the same steps and observing the results.
Option C) It may be difficult to determine if the test has passed or failed - This option is correct. When an expected result is not specified, it becomes challenging to evaluate whether the observed result aligns with what is expected. Without an expected result, we lack a benchmark to compare the actual result and determine if the test has passed or failed.
Option D) We cannot automate the user inputs - This option is incorrect. The ability to automate user inputs does not depend on whether or not an expected result is specified. We can still automate user inputs even if the expected result is not explicitly mentioned.
The correct answer is C) It may be difficult to determine if the test has passed or failed. This option is correct because not specifying an expected result makes it challenging to evaluate the test's outcome and determine if it has met the desired criteria.