If some viruses are also enclosed by phospholipids fat and molecules, then what are some viruses enclosed by?

Answer choices:
- sub-units of species
 - phospholipids, fat, molecule
 - Germy surfaces
 - it keeps an organism warm
 - Something that comes in a bundle of fibers
 - Something made from fermented ricce
 - microorganisms
 - A compound that donates proton

 

  phospholipids, fat, molecule        