The correct answer is option 3, Lysosomes. Lysosomes are small organelles found in the cytoplasm of eukaryotic cells. They contain enzymes that are responsible for breaking down and recycling cellular waste materials and debris, including old organelles and macromolecules.

Lysosomes are known as the "suicide bags of cells" because, under certain circumstances, they can release their enzymes and cause the cell to undergo self-destruction. This process, called apoptosis or programmed cell death, is an important mechanism for maintaining the overall health and balance of an organism.

By releasing their enzymes, lysosomes can break down and eliminate damaged or unnecessary cellular components, preventing the accumulation of toxic substances and allowing for the recycling of vital materials. This process is particularly important during development and tissue remodeling, as well as in the immune response against invading pathogens.

In summary, lysosomes are known as the "suicide bags of cells" because they can release their enzymes to induce programmed cell death.