Option B.
The pathogen replicates without using host cells' replication machinery, and it is directly transmitted
Pathogen- A pathogen is an organism that causes disease to its host, with the severity of the symptoms referred to as virulence. Pathogens are many and varied, whatever type of pathogen.
Replication- A double-stranded DNA molecule is duplicated to create two identical DNA molecules through the process of DNA replication. It is crucial for cells to continuously copy DNA as daughter cells must have the same quantity of DNA as the parent when they divide (i.e., DNA replication, mitosis).
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