Organisms under the taxonomic group Animalia are A all single-celled autotrouphs

B sometimes mulit-celled autotrophs

C sometimes single-celled heterotrophs

D all multI-celled heterotrophs

D all multI-celled heterotrophs

Explanation:

All living with organisms have been classified into kingdoms. One notable kingdom is Kingdom ANIMALIA. Members of kingdom Animalia are characterised by their HETEROTROPHIC nature i.e. they depend on other organisms for energy source.

Animals are all multicellular i.e. more than one cell and eukaryotic (membrane-bound nucleus). They are heterotrophs, which obtain their food either by saprophytism, predation, etc. Hence, according to this question, all members of the taxonomic group Animalia are multI-celled heterotrophs.

the correct answer is - ability to find a mate