The correct answer is (a) 1969.
The Morbi dam burst was a dam failure that occurred on August 11, 1969, in Morbi, Gujarat, India. The dam, which was built in 1952, was designed to provide irrigation and drinking water for the surrounding area. However, it was not properly maintained and was eventually overwhelmed by heavy rains. The failure of the dam caused a flash flood that killed more than 2,000 people and displaced over 100,000.
The Morbi dam burst was a major disaster that had a significant impact on the people of Gujarat. The government of India has since taken steps to improve the safety of dams in the country, but the disaster remains a reminder of the dangers of dam failure.
The other options are incorrect because they are not the years in which the Morbi dam burst occurred.