Two patients were admitted to the hospital. one patient was diagnosed with salmonella poisoning and the other had west nile. which best describes their sicknesses?

patient one has a communicable disease and patient two has a noncommunicable disease.
patient one has a noncommunicable disease and patient two has a communicable disease.
patient one contracted the sickness from contaminated materials and patient two contracted the sickness from an animal vector.
patient one contracted the sickness from an animal vector and patient two contracted the sickness from contaminated materials.

you are certainly talking about this picture:

a: is the label of the white square, it is showing the  replication fork, formed by helicase (d) ==> so it is the site of dna separation and replication 

b: is a new dna brand that is following directly the replication fork, so it is continuous ==> built continuously from 5' to 3

c: dna polymerase cannot replicate dna on its own, it needs the of their proteins, and one of them plays the role of a clamp which fixes  the dna with the dna template and increases  the processivity of the enzyme. ==>   stops polymerase from falling off the  template.

d: is the enzyme responsible for forming the replication fork (helicase) ==> unwinds and separates dna into two strands

e: is the delayed strand, it is built  in the opposite sense of the helicase, so dna will be built in fragments ==> built  fragments from 5' to 3 joins

and finally f: is the enzyme that builds  the new dna strand (dna polymerase) ==>   adds nucleotides to make a new dna helix.

credit: gradman555p98x9p

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the answer to your question is b