Which one is not a correct definition? a. An enveloped virus have more advantages then naked viruses b. Viruses'genetic material can be either DNA or RNA c. Viral nucleic acid is always surrounded by capsid d. Enveloped viruses are more sensitive to environmental conditions

The correct answer is c. Viral nucleic acid is always surrounded by capsid. This statement is not accurate because not all viral nucleic acids are surrounded by a capsid. Some viruses, such as enveloped viruses, have a lipid envelope surrounding their nucleic acid instead of a capsid.