Which of the following test execution outcomes are likely to increase the overall quality of the software:
I. A test case passes
II. A test case fails, defect gets logged which subsequently gets fixed
III. Some tests are deferred because test environment is not available
IV. A bug is found but there is no corresponding test case
A. I, II, and III
B. I and IV
C. I and II
D. I, II, and IV