A human researcher went missing in an area where he was studying a wild band of chimpanzees. Some poachers were arrested and

Question

A human researcher went missing in an area where he was studying a wild band of chimpanzees. Some poachers were arrested and their truck had an African Leopard who had recently eaten a large meal. A researcher nearby with a simple, mobile lab equipped with a microscope and stains claims she can distinguish whether the tissue inside the African Leopard's stomach came from a chimpanzee or a human. Furthermore, she can do it in less than 30 minutes. How would she do this? 
A. Cytology stains of cells undergoing mitosis reveal a large chromosome 2 or two small chromosomes( 2a and 2b) 
B. Sequence the DNA in the tissue using the Oxford Nanopore 
C. Run protein concentration tests to show Chimpanzee cells have a high average protein content 
D. digest the samples with proteases and run them on a triple quad mass spectrometer.

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