Basket star belongs to which class?

Assertion : Ambulacral system plays a major role in locomotion of echinoderm.
Reason : Hydraulic pressure of fluid and contraction of muscle of tube feet make possible movement of echinoderm.

Radial symmetry is found in ..........

Echinodermata is a group of animals which are

Match List-$I$ with List-$II$:

List-$I$ (Biological Name)	List-$II$ (Common Name)
$A$. Asterias	$I$. Sea urchin
$B$. Antedon	$II$. Brittle star
$C$. Echinus	$III$. Sea lily
$D$. Ophiura	$IV$. Star fish

Choose the correct answer from the options given below:

Which of the following statements is true regarding $Echinodermata$?