question # 1\nmultiple select\nwhich collections can contain duplicate items?\norganizer\nlist\ndeque\ndatase…

Brief Explanations:

Lists, deques, and tuples in programming can contain duplicate items. A list is an ordered collection that allows duplicates. A deque (double - ended queue) is also an ordered collection and can have duplicates. Tuples are immutable ordered collections and can have duplicate elements. Datasets and the term "organizer" (not a standard collection type in common programming languages) are not applicable here in the context of basic collection types that allow duplicates.

Answer:

B. list C. deque E. tuple