Q: Fact 1: Invertebrates are animals that lack a vertebral column, or backbone. Fact 2: Millipedes, spiders and other invertebrates are probably taken as well. Given the two facts above, millipedes lack what?

Choose your answer from:
[I] epidermal
[II] segmented body
[III] leg pairs
[IV] a cuticle
[V] a vertebral column
[VI] diplosomites
[VII] Chlorophyll
[VIII] biological diversity
The answer is:
[V]