4 Read the source below carefully to answer question (a). Benazir Bhutto’s government had to deal with accusations of encouraging corruption when she was in office in the late 1980s. Faced with increasing opposition to her rule, she was dismissed from office in 1990 by the President Ghulam Ishaq Khan. Nawaz Sharif became Prime Minister. He believed he could solve Pakistan’s problems and move away from the corruption accusations of the previous government. However, he did encounter a number of problems, one of which was regarding the Co-operative societies. (a) What was the Co-operative societies scandal?  (b) Why did Pakistan seek membership of the United Nations in 1947?  (c) Were the social reforms of Ayub Khan the most important of his domestic policies during the ‘Decade of Progress’ between 1958 and 1969? Explain your answer.