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The correct idiomatic expression is evidence of... This rules out choices A and E.
B uses the verb have developed in incorrect, it means that the calender is still in use.
In C, the last part of the sentence seems to connect more with the North Indians than the calender.
Check out this awesome article about Anderson on Poets Quants, http://poetsandquants.com/2015/01/02/uclas-anderson-school-morphs-into-a-friendly-tech-hub/ . Anderson is a great place! Sorry for the lack of updates recently. I...