Which one of the following statements is correct?

Which one of the following statements is correct?

Euplectella and Spongilla belong to different phyla of Animalia.
Sea anemone belongs to phylum Echinodermata.
Holothuria is a member of phylum Mollusca.
Scolopendra (Centipede) is a member of phylum Arthropoda.
This question was previously asked in
UPSC CISF-AC-EXE – 2019
Scolopendra (Centipede) is indeed a member of the phylum Arthropoda.
Arthropoda is the largest phylum in the animal kingdom and includes insects, spiders, crustaceans, and myriapods (like centipedes and millipedes). Centipedes belong to the class Chilopoda within Arthropoda.
Let’s analyze the other options: A) Euplectella and Spongilla are both types of sponges and belong to the phylum Porifera, so they are in the same phylum. B) Sea anemones belong to the phylum Cnidaria (or Coelenterata), not Echinodermata. C) Holothuria (Sea cucumber) belongs to the phylum Echinodermata, not Mollusca.