Answer :
Invertebrates: Arthropods, arachnids
The class Arachnida is part of the phylum Arthropoda and the subphylum Chelicerata.
Their members have their bodies divided into two segments, the prosoma (also called cephalothorax) and the opisthosoma (also called abdomen), and have 8 legs as adults, although some can be modified into sensory organs.
They also have two pairs of appendices adapted to other functions: the chelicerae (usually for feeding and defense) and the pedipalps (that can serve for feeding, locomotion, or reproductive functions.
The scorpion's pincers are modifications of the second pair of appendices, the pedipalps, while the spider's fangs are modifications of the chelicerae.
They are not the same thing, so the question is wrong, but from the answer options, the closest would be chelicerae.
