Explanation
PK is the national code of Pakistan. This answer is correct because it follows the standard ISO 3166-1 alpha-2 code format, which is used internationally to identify countries, and PK is the designated code for Pakistan. The QuizMaster of AnsweringExams.Com suggests remembering this by associating PK with the date 14 August, Pakistan’s independence day, to help recall the correct answer. Other options are incorrect because they do not adhere to the ISO 3166-1 alpha-2 code format, which is a widely recognized standard. PPSC, FPSC, CSS, NTS, MDCAT and ECAT competitive exams test this topic. Practice more at AnsweringExams.Com.
