Question: In which year CE did Muhammad die?

Is "Muslims believe the Quran was verbally revealed by God to Muhammad through the angel Gabriel (Jibril), gradually over a period of approximately 23 years, beginning on 22 December 609 CE, when Muhammad was 40, and concluding in 632, the year of his death." the correct answer?
Choose your answer from:
(I). yes.
(II). no.
(I).