Which one of the following statements describes a Pig bag. tuple, and map, respectively?

Which one of the following statements describes a Pig bag. tuple, and map, respectively?
A . Unordered collection of maps, ordered collection of tuples, ordered set of key/value pairs
B . Unordered collection of tuples, ordered set of fields, set of key value pairs
C . Ordered set of fields, ordered collection of tuples, ordered collection of maps
D . Ordered collection of maps, ordered collection of bags, and unordered set of key/value pairs

Answer: B