Explanation

Lysosomes are sacs of hydrolytic enzymes used for intracellular digestion. White blood cells, especially phagocytes like neutrophils and macrophages, engulf and digest pathogens and debris, so they carry the highest number of lysosomes. Pancreatic cells are rich in rough endoplasmic reticulum and Golgi for secreting enzymes, ovarian cells in smooth ER for steroid synthesis, and runner's muscle cells in mitochondria for energy. None of these needs as many lysosomes as a phagocytic white blood cell.