The question asks which of the listed items were introduced into India by the English.

Option 1 suggests that only the assessment of land revenue was introduced by the English. This is incorrect as land revenue assessment based on the nature of the soil and the quality of crops was already present in India prior to the arrival of the English.

Option 2 suggests the English introduced both the assessment of land revenue and the usage of mobile cannons in warfare. However, this is incorrect, as mobile cannons were used in several countries and regions, including India, before the English arrived.

Option 3 suggests that mobile cannons in warfare and the cultivation of tobacco and red chillies were introduced by the English. Similarly, this is also incorrect as both were present in India before the arrival of the English.

Option 4, which is the correct answer, states that none of the options were introduced by the English. This is true as all three aspects, namely, land revenue assessment, mobile cannons, and the cultivation of tobacco and chillies, existed in India before the English came.