What is the law of accelerating returns?

a - the concept that the more work a person puts into a project, the faster the technological discoveries occur
b - the theory that states that as order increases exponentially, the time between major discoveries grow shorter
c - the belief that computers will eventually outpace humans in intelligence
d - the idea that humans cannot build new concepts as fast as computers can

i tried researching this question but i couldn't get a direct answer and everything just confused me. !

Have you ever thought you understood a person based on a story that you have heard about them? have you ever guessed about a person's personal life because of the clothes they wore? or, have you judged a person because of their friends? although classifying people in this way is typically discouraged, authors deliberately use your preconceived ideas to you form an opinion about the character or to at least have a better understanding. can you think of a time that you made a character call about someone based on external aspects? were you correct, or incorrect? has anyone ever made an incorrect assessment of you based on external aspects? write two paragraphs about it in your journal.