________ deconstructs an array field from the input documents

deconstructs-an-array-field-from-the-input-documents

________ deconstructs an array field from the input documents to output a document for each element.

A. $unwindelem

B. $unwind

C. $unwin

D. None of the mentioned

The question was posed to me by my college professor while I was bunking the class.

This question is from Aggregation Operations in chapter Aggregation Concepts and Aggregation Mechanics of MongoDB

Right choice is C. $unwin

Best explanation: Each output document replaces the array with an element value.