The correct option "None" indicates that all the mentioned practices were not introduced into India by the English, showcasing the indigenous evolution of agricultural and military practices prior to colonial influence. The assessment of land revenue based on soil quality traces back to earlier systems like the Mughal administration, while mobile cannons were already utilized in Indian warfare long before the English arrival, and crops like tobacco and red chillies were established in Indian agriculture well before British colonization, indicating a rich pre-colonial agricultural and military heritage. This understanding aligns with UPSC-prepared content emphasizing the importance of indigenous developments in Indian history.