The correct answer to the question is option 4, Plasma Membrane.

Option 1, Nucleolus: The nucleolus is a small structure inside the nucleus of a cell. It is involved in the production of ribosomes, which are responsible for protein synthesis. The nucleolus does contain nucleic acid in the form of DNA and RNA.

Option 2, Chloroplast: Chloroplasts are found in plant cells and are responsible for photosynthesis, the process by which plants convert sunlight into energy. Chloroplasts contain their own DNA and RNA, making them possess nucleic acid.

Option 3, Ribosome: Ribosomes are the site of protein synthesis in a cell. They are made up of RNA molecules and proteins. Therefore, ribosomes do possess nucleic acid.

Option 4, Plasma Membrane: The plasma membrane, also known as the cell membrane, is a thin barrier that surrounds the cytoplasm of a cell, separating it from the external environment. The plasma membrane is composed of lipids and proteins and does not contain nucleic acid. Its main function is to regulate the movement of substances in and out of the cell.

In summary, the nucleolus, chloroplasts, and ribosomes all possess nucleic acid