There are two types of cells found in nature, eukaryotic cell and the prokaryotic cell. The Eukaryotic cells are those cells, which have a well defined nucleus and membrane bound organelles. The prokaryotic cells do not have nucleus. The bacteria are the prokaryotic cells, there genetic material is present in the cytoplasm.
The E.coli and Salmonella are the bacterial cells, hence, they are prokaryotic cells.
The plants and the animals are made up of eukaryotic cells, hence, carrot and muscle cells are the eukaryotic cells.
So, the correct answers are options b. muscle and d. carrot.