Concept:The first revelation to Prophet Muhammad (SAW) began in the year 610 C.E.Explanation:The Prophet (SAW) was visited by Angel Jibril (Gabriel) in the Cave of Hira.This visit brought the first verses of the Qur'an.This event took place in the year 610 C.E.Among the options given, this corresponds to 610 C.E.Answer:C. 610 C.E.