If someone were to transform into someone would they take over their body or would they shape shift into them and would you be able to think how they think or are stuck as you inside of their body p. s this is for my writing class

Arachne filled her web with subjects designedly chosen to exhibit the failings and errors of the gods. one scene represented leda caressing the swan, under which form jupiter had disguised himself; and another, danae, in the brazen tower in which her father had imprisoned her, but where the god effected his entrance in the form of a shower of gold. still another depicted europa deceived by jupiter under the disguise of a bull. encouraged by the tameness of the animal, europa ventured to mount his back, whereupon jupiter advanced into the sea, and swam with her to crete. based on this passage, what could you argue is arachne's chief complaint with the gods? they change their form too often in order to spy on human beings. they are sneaky and manipulative around human beings. they manipulate human beings into doing their will. they selfishly do whatever them without care of consequences.