Review Question - QID 106697

An HIV-positive female is brought to the emergency department by her husband because of a change in her behavior. Her husband states that for the last week she has had a progressively worsening fever, headache, and neck pain. Today, she awoke and was not acting like herself. In the ED, the patient's CD4 count is found to be 37 cells/mm^3. A lumbar puncture is obtained, which demonstrates the following: severely elevated opening pressure, increased lymphocytes, elevated protein, and decreased glucose. The CSF is sent to the lab to be cultured. Which of the following images demonstrates the organism that is most likely to be cultured in this patient?