Question: In Ruby, how is the concept of nothing represented? null none- This should not be selected zilch nada nil The expression used in an IF

In Ruby, how is the concept of "nothing" represented?

null

none- This should not be selected

zilch

nada

nil

The expression used in an IF statement can evaluate to which of the following types?

Integer

All of the above -This should not be selected.

Not quite. At least one of the above answers is incorrect.

Float

String

Boolean

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