Select the most appropriate option that can substitute the highlighted segment in the sentence.
He passed away in the year 1950 at 10 a.m. on 13 July.

Correct option is C

Explanation:
The proper sequence when expressing time and date is:
Time → Date → Year
Correct Sentence:
He passed away at 10 a.m. on 13 July in the year 1950.
Grammar Rule:
When giving full time expressions:
at [time] on [date] in [year]
E.g., at 5 p.m. on 15 August in 1947