During the reign of Akbar, __________ was the land that has lain fallow for three or four years.

Correct option is C

The correct answer is (c) Chachar.
 During the reign of Akbar, Chachar referred to land that has lain fallow for three or four years.
 Akbar's land revenue system, known as the Zabti or Todar Mal's Bandobast, categorized land based on its cultivation status.
 Polaj: Land that was annually cultivated and yielded regular crops.
 Parauti: Land that was left fallow for one or two years to regain fertility.
 Banjar: Land that was left uncultivated for five or more years.