Fact 1: Adult echinoderms have radial symmetry.

Fact 2: All echinoderms are deuterostomes .

Given the two facts above, answer the question "what have radial symmetry?" with the following options: 
- deuterostomes
 - Veins and arteries.
 - barnacles
 - alpacas
 - solid, liquid, gas
 - sensory neurons
 - gastropod shells
 - graptolites


 

 deuterostomes        