Answer:
A - it is multicellular
Explanation:
The answer is A because the orgaNism the scientist is studying is being classified as an animal.
They are asking what is true about the orgaNism (not what made the scientist classify it as an animal)
When looking at the options you can see that:
A - All animals are multicEllular
B - some animals have raDial symmEtry but some don't
C - some have a bAckbone while some don't
D - all animal cells contain a nUcleus, so the last one is 100% incorrect
have a wonderful day <3
