Answer:
B and C
Explanation:
Option A is incorrect. Microtubules only support and give shapes to cells.
Option D is also incorrect because microfilaments mostly provide supports to cells as well.
The cilia is a slender protuberant structure found on some cells. A variant of the cilia (motile cilia) function in the locomotion of some unicellular eukaryotic organisms using wave-like actions.
The flagella is similar to the cilia in being protuberant as well as functioning as a locomotive structure. However, the flagella is much longer than the cilia and uses whip-like action instead of wave-like action.
Options B and C are correct.