As a Scientist Working for an Anti-Bioterrorism Task Force, You

As a scientist working for an anti-bioterrorism task force, you are asked to evaluate some biological samples for the presence of Yersinia pestis, the organism that causes The Plague. After confirming that the samples do contain Y. pestis, you instruct your team to begin sequencing the strain. Given that the genome sequence of Y. pestis is already known, why did you instruct your team to sequence this strain?

A) To confirm the original genome sequence and verify that this strain matches.
B) To establish the course of infection, and determine whether the strain is altered by causing infection.
C) To gather possible information on its origin, and determine whether the strain has been genetically engineered.
D) To establish the SNPs necessary to confirm infection from this strain.