Which of These,if True,would Support the Claim That the Ancestral

Multiple Choice

Which of these,if true,would support the claim that the ancestral cnidarians had bilateral symmetry?
1) Cnidarian larvae possess anterior-posterior,left-right,and dorsal-ventral aspects.
2) Cnidarians have fewer Hox genes than bilaterians.
3) All extant cnidarians are diploblastic.
4) All cnidarians are acoelomate.

A) 1 only
B) 1 and 4 only
C) 2 and 3 only
D) 2 and 4 only
E) 3 and 4 only