Question: How many of these allow inserting null values: ArrayList, LinkedList, HashSet, and TreeSet? A. 0 B. 1 C. 2 D. 3 E. 4

How many of these allow inserting null values: ArrayList, LinkedList, HashSet, and TreeSet?

A. 0

B. 1

C. 2

D. 3

E. 4 

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