Correctly matched set of phylum, class and example is
Protozoa-Mastigophora-Entamoeba
Mollusca=-Bivalvia-c-Pmcrcdc
Arthropoda-Diplopoda-Scolopendra
Chordata-Cyclostomata-Phrynosoma
B.
Mollusca=-Bivalvia-c-Pmcrcdc
Pinctada sp. is the bivalve molluscs, commonly known as pearl oysters. These belong to sub-class-Lamellibranchia, class-Bivalvia or Pelycipoda, phylum-Mollusca and Kingdom-Animalia.