Option d is the correct answer Pair a is correct: A Dam was a small Indian copper coin. The coin was first introduced by Sher Shah Suri. Pair b is correct: Desai was a title given to feudal lords, revenue collectors, and others who were given a village or group of villages, in North Karnataka, Gujarat, and Maharashtra. Pair c is correct: A central finance department, chief administrative office, or regional governing body. They belonged to the elite families in the history of Mughal and post-Mughal India. They held high posts within the government. Pair d is incorrect: Jarib: The Jarib is a traditional unit of land measurement in the Middle East and southwestern Asia. It is a unit of area used to measure land holdings. In India, Sher Shah started the application of 'Jarib' for land measurement.