Directions: This question consists of six sentences of a passage. The first and sixth sentences are given as S1 and S6. The middle four sentences in each have been jumbled up and labelled as P, Q, R and S. You are required to find the proper sequence of the four sentences and mark your response accordingly.

S1: Experts thought that Artificial Intelligence (AI) would first automate the menial tasks.
P: Driving, grocery delivery, and the like.
Q: There has been significant progress towards this goal, mostly by companies other than Tesla.
R: But sipping chai as an autopilot drives us from Marina Beach to Mylapore is still a future too far away.
S: For eight straight years, Elon Musk has promised full self-driving capabilities in his Tesla cars.
S6: We may have made terrific or terrifying, depending on how you see it progress on another front.