Exam UiPath-ADPv1 Topic 1 Question 45 Discussion

To print the elements of a string array separated by a specific string, the String.Join method is used in C#.
This method takes two parameters: the first is the separator string and the second is the array to join into a single string.
Given the options and the requirement to separate array elements with a comma and a space (", "), the correct expression to use in a Log Message activity would be:
C: String.Join(", ", UserNames)
This will produce a single string with each element of the UserNames array separated by ", " (a comma followed by a space).