Answer / Anil Tomar

The 'select()' method is used to project each element of a sequence into a new form by applying a transformation function to each element. It returns a new collection containing the result of the projection. The 'selectMany()' method is an extension method that projects each element of a sequence into a flat sequence of values by applying a transformation function to each element, and then concatenating the results together. It does not create any additional collections.

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