During phagocytosis, what may fuse with the vacuole to further degrade the ingested material?

During phagocytosis, what may fuse with the vacuole to further degrade the ingested material?
  a. ligand
  b. receptor
  c. lysosome
  d. phosphate
  e. desmosome

Question 2

A person has a genetic disease that prevents the phospholipids in the plasma membrane of the white blood cells from
  freely fusing with the other membranes within the cell. How would this disease affect phagocytosis?
  a. Endocytosis would not occur.
  b. Lysosomes would not be formed.
  c. Facilitated diffusion would not occur.
  d. Lysosomes would be formed lacking hydrolytic enzymes.
  e. The phagocytic vacuole would not fuse with the lysosome.