Categorize the following items as a final​ good, an intermediate​ good, or neither a final good nor an intermediate good. Cough medicine purchased by Tracy who has a cold is an example of​ ______ good. Biscotti bought by Southwest Airlines and served to passengers is an example of​ ______ good. A. neither a final nor an intermediate​; a final B. a final​; an intermediate C. neither a final nor an intermediate​; an intermediate D. a final​; a final Gravel purchased by a firm that produces cement is an example of​ ______ good. Concrete purchased by Your Swimming Pool Inc. is an example of​ ______ good. A. a final​; an intermediate B. a final​; a final C. an intermediate​; an intermediate D. an intermediate​; a final.