The correct answer is option 1: Virus contains protein and lipid. Viruses are considered to be a unique form of life as they are not living organisms, but rather infectious agents. They consist of a protein coat called a capsid, which encloses the genetic material of the virus. This genetic material can be either DNA or RNA, depending on the specific virus. Outside the capsid, some viruses also have a lipid envelope that surrounds the protein coat. This envelope is derived from the host cell`s membrane during the replication process. Therefore, viruses are composed mainly of proteins and lipids. While nucleic acids are present within the viral structure, they are not the only components of a virus. Carbohydrates, on the other hand, are not typically found in viruses.