i think its d) because all the other ones sound more real than d) does.
An example of passive transport is diffusion,
the movement of molecules from an area of high concentration to an area of low concentration. Carrier proteins and channel proteins are involved in facilitated diffusion.
In the story of <em>"The Baseball Player Who Wanted More"</em> and <em>"The Stonecutter Who Was Never Satisfied"</em>
, the characters have the same idea, they aren't satisfied with the achievements they had reached, Stanley the stonecutter, was transformed in all the characters he wanted but he never felt satisfied.
Maybe being yourself isn't so bad, right?
C) is not a goal in informative speaking
It can be there it’s not wrong but I think it would also be fine without it, so either
