Pakistan which rejoined the Commonwealth, had pulled itself out of it in the year –

The correct answer is: C. 1972

Pakistan joined the Commonwealth of Nations in 1947, shortly after its independence from British rule. However, in 1972, Pakistan withdrew from the Commonwealth in protest of the organization’s recognition of Bangladesh, which had seceded from Pakistan in 1971. Pakistan rejoined the Commonwealth in 1989.

Option A is incorrect because Pakistan did not withdraw from the Commonwealth in 1978.

Option B is incorrect because Pakistan did not withdraw from the Commonwealth in 1975.

Option D is incorrect because Pakistan did not withdraw from the Commonwealth in 1982.