As deuterostomes,the echinoderms and hemichordates share all of the following developmental characteristics except one.

A)The anus develops from the blastopore.
B)The coelom forms from outpockets of the embryonic gut tract.
C)The cleavage is radial.
D)The cleavage is determinate.
E)The larval forms are bilaterally symmetrical and ciliated.