The correct option is C.
Pilli is a long protein filament which attach reproducing cells together during conjugation. This attachment allows the cells to exchange the genetic materials, that is, plasmid between them.
<span>The role of a cytoskeleton in a living cell is to supply structure to the cell, give the cell the ability to move and ensure proper cell division during cellular reproduction. The cytoskeleton contains three types of filaments within the cytoplasm, including intermediate filaments, microfilaments and microtubules. </span>
The first one is the answer.
good luck 0-0
As per the two attachments given in the question, option "B" is the one choice among the choices that are given <span>shows an unsaturated fatty acid. The other options given are incorrect and can be easily neglected. I hope that this is the answer that has actually come to your great help.</span>

¿What are invertebrates?
Invertebrates are unicellular or multicellular organisms that present a great variety of habits and morpho-functional patterns.
Which are classified into :-
Anthropods, molluscs, worms, echinoderms, coelenterates, and porifera.
I hope I've helped : )