Question

Lobsters are invertebrates with a hard protective exoskeleton. Like most arthropods, lobsters must molt in order to grow, which leaves them vulnerable. During the molting process, several species change color. Lobsters have 10 walking legs; the front three pairs bear claws, the first of which are larger than the others. Although, like most other arthropods, lobsters are largely bilaterally symmetrical, some possess unequal, specialized claws. Lobsters, like snails and spiders, have blue blood due to the presence of haemocyanin which contains copper. Maybe there are other animals that have blue blood as well.
(Adapted from Wikipedia)
Which sentence is unnecessary and could be eliminated without disturbing the flow and information of the paragraph?
A) Maybe there are other animals that have blue blood as well.
B) Lobsters are invertebrates with a hard protective exoskeleton.
C) Like most arthropods, lobsters must moult in order to grow, which leaves them vulnerable.
D) Lobsters, like snails and spiders, have blue blood due to the presence of haemocyanin which contains copper.

Answer 1

A) Maybe there are other animals that have blue blood as well.

The rest of the information in this passage is all informational and relates specifically to the topic. This last sentence though, does not offer any specific information and does not need to be included in the passage for the reader to understand more about lobsters.