The correct answer is E. None of the above.
The Tinkathia System was a system of forced cultivation of indigo in Bihar, India, in the 19th century. Under this system, peasants were forced to cultivate indigo on one-third of their land, and to sell it to the British East India Company at a fixed price. This system led to widespread poverty and misery among the peasants, and was eventually abolished in 1885.
Option A, 01/10, is incorrect because it is the proportion of land that was to be reserved for indigo cultivation under the Ryotwari System, which was a different system of land tenure in India.
Option B, 01/03, is incorrect because it is the proportion of land that was to be reserved for indigo cultivation under the Mahalwari System, which was another different system of land tenure in India.
Option C, 03/20, is incorrect because it is the proportion of land that was to be reserved for indigo cultivation under the Permanent Settlement, which was yet another different system of land tenure in India.
Option D, 03/25, is incorrect because it is not a proportion that is consistent with any of the systems of land tenure that were in place in India in the 19th century.