Explanation:

Trashing in agriculture refers to the practice of removing the dry, senescent (aging) leaves from the lower part of a plant. This is a common and important cultural practice in sugarcane cultivation (Option A). It helps in improving air circulation, reducing pest and disease incidence, facilitating irrigation, and making harvesting easier. While a similar practice of de-leafing is also done in banana plants, 'trashing' is most strongly and widely associated with sugarcane in agricultural terminology. Option B, Gram (chickpea), and Option C, Tobacco, do not typically involve 'trashing' as a standard cultivation practice. Therefore, sugarcane is the crop most directly related to trashing.