Correct option is C
- (P) should come first because it introduces the relationship: he was married to Gaia.
- (S) logically follows because it adds the next relevant detail about the couple: Uranus had twelve children with Gaia.
- (Q) then explains the crucial event related to those children: after a prophecy, the ruler hid his children inside their mother (earth).
- (R) naturally concludes the paragraph because it is a reaction to the action in (Q): Gaia hated him for this.
- (a) RQSP: Starts with hatred (R) without first stating what happened and who the characters are.
- (b) PRSQ: Places (R) before (Q), but Gaia’s hatred (R) must be a result of the act described in (Q).
- (d) RPSQ: Again begins with (R) and places the reaction before the cause.