The correct option no is 2. To determine if they are prokaryotic or Eukaryota she should look for the <u>nucleus.</u>
Explanation:
Prokaryotes can be described as organisms that are single-celled and lack membrane-bound organelles. Eukaryotes can be described as multicellular organisms and they possess membrane-bound organelles.
In Eukaryotes, the hereditary material is present inside a membrane-bound organelle termed as the nucleus. The prokaryotes do not have a nucleus and their hereditary material is present in the cytoplasm. Hence, option no 2 is correct.
Other structures like DNA and ribosomes are present both in the prokaryotic and eukaryotic cells.
