Answer: Option B)
Im 100% sure its the answer!
Dna contains sulfur and little phosphorus
Viruses are not always classified as living cells because they cannot live independently. They rely on a host to provide all resources to live, without a host they are in a dormant, near dead like state. Therefore it has to define a virus as dead or alive as it may or may not have a host.
I need more to answer the question