Fact 1: Vertebrates are animals that have a backbone. Fact 2: Invertebrates are animals who lack a backbone or spinal column. Given the two facts above, what has a spinal column?

Select from the following.
[1]. bacteria
[2]. humans
[3]. vertebrates
[4]. lichens
[5]. invertebrates
[6]. athletes
[7]. matter vibrating
[8]. people
Answer:
[3].