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. since the genome sequence of y. pestis is already known, why would sequencing this strain be useful? a. to confirm the original genome sequence and gather possible information on the origin of the strainb. to establish the course of infection and determine whether the strain has been genetically engineeredc. to gather possible information on the origin of the strain and determine whether the strain has been genetically engineeredd. to establish the snps necessary to confirm infection from this strain