BITSAT 2024 Shift 1 Paper

We can solve this by identifying the classification of each animal:
A bat is a mammal.
Similarly, spiders belong to the phylum Arthropoda(spiders are arachnids, which are part of the arthropods).
Thus, just as a bat is a type of mammal, a spider is a type of arthropod.
The correct answer is: Option B, Arthropoda.