Latency refers to ;the process of viral replication inside a host. the process of making a viral envelope from portions of the host’s cell membrane. the process of viral disease formation inside a host. a dormant state of the virus inside a host's body.

The Answer is D

Explanation:

Viral latency is the ability of a virus to remain dormant within the host cell, sometimes establishing lifelong occult infection.

answer-

the statement that f(x) = |x+a| + b has exactly one x-intercept is sometimes correct.

solution-

it solely depends on b, whether the function will have one or two or zero x intercept.

this plot of the given function, f(x) = |x+a| + b will be the basic absolute value graph i.e v shape, with vertex translated to (-a, b), instead of origin.

1-   if b is zero, the graph will have exactly one x-intercept, at x= -a

2- if b is positive, the whole graph will be above the x-axis, hence it will have no x-intercepts.

3- if b is negative, the graph will be below the x-axis, hence it will have two x-intercepts.

∴ the statement is sometimes true.