Suppose you ran this test with Providencia stuartii, but it took 48 hours to turn pink. You verify the literature for this microbe and notice it is classified as a rapid urea hydrolyzer. Select the best conclusion for the scenario.
Group of answer choices:
a) The medium sensitivity was not adequate (poor quality, maybe expired, improper handling, etc.).
b) The medium shows the result that should be used instead of being guided by the literature.
c) The microbe sample was contaminated.
d) The microbe can be classified as a rapid urea hydrolyzer based on the results.