The correct option is C Cheras
Kerala was a part of the ancient Tamilakam, ruled by the Moovendars. A kingdom based at Mahodayapuram was established by the 9th century CE. The rulers of the kingdom were known as Perumals. The present Kodungallur and the surrounding areas in Kerala were known as Mahodayapuram in those days. The Perumals were also known as Cheras and Cheramans. Some of these rulers adopted the title Kulasekara. Most regions in present Kerala were under the rule of the Perumals.