What is the function of the structure identified by the red arrow?

What is the function of the structure identified by the red arrow?

a. mobility

b. protection

c. reproduction

d. dna transfer

the answer is a mobility or more rightly placed motility

Explanation:

A flagella is a lash like appendage that protrudes from the cell body of certain bacteria and eukaryotic cells termed as flagellates. a flagellate can have one or several flagella. the primary function of a flagellum is that of locomotion but it can alo function as a sensory organelle, being sensity to chemicals and temperatures outside the cell. the similar structure in the archaea function in the same way but it is structurally different and has been called archaellum.