To strip a variable of the newline character that came in, you can use the "chomp" operator.
Option A) tidy - This option is incorrect because there is no "tidy" operator that performs the described operation.
Option B) trim - This option is incorrect because the "trim" operator is used to remove leading and trailing whitespace characters, not specifically the newline character.
Option C) chomp - This option is correct. The "chomp" operator is used to remove the trailing newline character from a string.
Option D) slim - This option is incorrect because there is no "slim" operator that performs the described operation.
The correct answer is C) chomp. This option is correct because it specifically removes the newline character from the end of a string.