17. Octopuses are...
A ...gastropods.
Gastropoda are a class of molluscs like snails.
B ...arthropods.
Arthropoda have hard exoskeletons and jointed appendages, like spiders and centipedes.
C ...chordates.
A chordate is a deuterostomic animal belonging to the phylum Chordata.
D ...istiophoriformes.
Istiophoriformes are an order of bony fish.
E All of the above are true.
Incorrect
F None of the above are true.
Correct!
