Based on the results in Experiment 2, which of the following could be true? ... ...

Based on the results in Experiment 2, which of the following could be true? I. Invertase diffused from the lysosomes of cell type A into the lysosomes of cell type B. II. The lysosomes of cell type A fused with the lysosomes of cell type B. III. Invertase destroyed cell type B and only allowed cell type A to survive.
(A) I only
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in 10. Cellular Organelles