The correct answer is: A. Rohtak.
The Kushan Empire was a major power in Central Asia and the Indian subcontinent from the 1st to the 3rd centuries CE. The Kushans were a nomadic people who originated in Central Asia. They conquered large parts of the Indian subcontinent and established a powerful empire. The Kushans were patrons of art and architecture, and they commissioned many beautiful sculptures.
The main center of Kushana period sculptures in Haryana is Rohtak. Rohtak is a city in the northern Indian state of Haryana. It is located on the banks of the Yamuna River. Rohtak was an important center of the Kushan Empire. Many Kushan period sculptures have been found in Rohtak. These sculptures are made of stone and terracotta. They depict a variety of subjects, including gods, goddesses, and animals.
The other options are incorrect. Sirsa is a city in the northern Indian state of Haryana. It is located on the banks of the Ghaggar River. Sirsa was not an important center of the Kushan Empire. No Kushan period sculptures have been found in Sirsa.
Panipat is a city in the northern Indian state of Haryana. It is located on the banks of the Yamuna River. Panipat was not an important center of the Kushan Empire. No Kushan period sculptures have been found in Panipat.
Kurukshetra is a city in the northern Indian state of Haryana. It is located on the banks of the Saraswati River. Kurukshetra was the site of the Mahabharata war. It was not an important center of the Kushan Empire. No Kushan period sculptures have been found in Kurukshetra.