Which is best described by the characteristics listed below
contains nucleic acid
has a protein coat
derives its energy from a host cell
a virus
b eukaroyte
c moneran
d prokaryote

Virus  is BEST described by the characteristics listed below

Explanation:

Viruses are identified on the basis of the host they attack. Viruses gets the energy and other metabolic processes from the host cells. The viruses lacks the capability to generate or store energy in form of ATP.  

The virus when attacks the host cells, it releases it genetic instruction to the host cell then it translate mRNA into viral protein. The virus affects the ribosomes of the host cell. Then the viral protein will make more number of affected cell and helps in virus spread or multiplication.