Which of the following statements about viruses with envelopes and viruses without envelopes

Which of the following statements about viruses with envelopes and viruses without envelopes is true?
a. Viruses with envelopes have two phospholipid bilayer membranes directly surrounding their genome, viruses without envelopes do not have phospholipid membrane
b. Viruses without envelopes have / protein capsid surrounding their genome and then only a single phospholipid layer (not a bilayer)
c. Viruses envelopes have their genetic material enclosed by a layer made only of phospholipids.
d. Both types of viruses have a capsid and phospholipid bilayer membrane; what makes them different from one another is the envelope’ created by the different proteins in their respective bilayers.
e. none of the above