What should an Administrator do to allow the value of a variable to be get by sources that started the flow?

What should an Administrator do to allow the value of a variable to be get by sources that started the flow?
A . Select "Field is required" checkbox
B . Select ‘Allow Multiple Values" checkbox
C . Select "Available for output" checkbox
D . Select "Available for input" checkbox

Answer: C

Explanation:

In order to allow the value of a variable to be obtained (or "output") by sources that started the flow, the "Available for output" checkbox should be selected. This makes the variable’s value available to the flow or process that initiated the current flow.

The "Available for input" checkbox allows values to be passed into a flow from the source that started it, whereas the "Allow Multiple Values" checkbox allows a variable to hold more than one value. The "Field is required" checkbox, on the other hand, is not applicable in this context.