Which civilization had a 365 day calendar as well as a 260-day religious calendar

The Aztec sun stone, also called the calendar stone

Explanation:

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The Aztecs referred to the 365 and 260-day cycles as xiuhpohualli (year count) and tonalpohualli (day count) respectively. The veintena was called metztli (moon), and the five unlucky days at the end of the solar year were called nemontemi.

Explanation:

in his book, the riddle of the rosetta stone, james giblin talks about how there was a young british polymath and physician named thomas young who made a lot of advances on the deciphering of the rosetta stone. he says that even though young made a lot of mistakes because he was working under false assumptions, he also made huge contributions like deciphering three out of the seven symbols (more than anyone else before him). young published his findings and continued his good work but he wasn't able to progress much further due to some unfavorable situations, he still laid the basis for many other scholars and of course for the man who has been generally known to have deciphered it, jean-françois champollion

i also think it is c