Which of the following fibers can be confirmed by their microscopic appearance?
(a) Cotton
(b) Wool
(c) Silk
(d) Nylon
(e) Flax
Choose the correct answer from the options given below:
1
(a), (b) and (c) only
2
(a), (b) and (e) only
3
(b), (c) and (d) only
4
(e), (d) and (b) only