Answer: C. “to get out of a situation.”
Generally, the prefix “ex” signifies negation or exclusion. More precisely, the prefix “ex” can mean “out of,” “not,” or “without.” With this, “ex” implies not being identified by a former title anymore. Of the options listed, option C is the correct answer as it is the only option indicating the main idea of the prefix “ex”; getting out of something. The other options describe different occurrences.