The correct answer is: c) Lothal.
Lothal is a major Harappan site in Gujarat, India. It is located on the banks of the Sabarmati River, about 80 kilometers from Ahmedabad. Lothal was a significant port city during the Harappan period, and it is one of the best-preserved Harappan sites.
Lothal was a major center of trade and commerce. It was connected to other Harappan sites by a network of canals and roads. Lothal also had a dock, which was used to export goods such as pottery, beads, and metals.
Lothal was a well-planned city. It was divided into two parts: the citadel and the lower town. The citadel was the administrative and religious center of the city. The lower town was the residential area.
Lothal was a prosperous city. It had a well-developed system of water management, and it was also a major center of handicrafts. Lothal was abandoned around 1900 BCE, and the reason for its abandonment is still unknown.
The other options are incorrect because they are not major Harappan sites in Gujarat.
a) Dholavira is a Harappan site located in Kutch district of Gujarat. It is one of the largest Harappan sites, and it is known for its well-preserved fortifications.
b) Surkotada is a Harappan site located in Kutch district of Gujarat. It is known for its large number of wells.
d) Rangpur is a Harappan site located in Banaskantha district of Gujarat. It is known for its large number of terracotta figurines.