The correct option is B Mulberry silk and Non-mulberry silk
The different varieties of natural silk are:
(1). Mulberry silk and (2). Non-mulberry silk
The other types of non-mulberry silk are:
a. Tasar silk
b. Eri silk
c. Muga silk
d. Coan silk
e. Spider silk
f. Anaphe silk
g. Mussel silk
h. Fagara silk