I think the answer might be giant otter , but not sure
That they don't have a nucleus.
The nucleic acid is DNA and would be found in the cell’s nucleus.
In short, Your Answer would be Option D
Hope this helps!
The answer would be
older peopleshould be vaccinated because elderly individuals are more susceptable to diseases and proper vaccinations can help prevent this matter. some may even think the answer could be antibiotics but antibotics taken repetitively can lose its potency and the body will be immune to its once helpful purpose. hope this helped love