Option 1: Wheat, rice, sugarcane, pulses. This option is not correct because the major agricultural food crops of India are produced in larger quantities than pulses.

Option 2: Coarse cereals, pulses, oilseeds, sugarcane. This option is not correct because the major agricultural food crops of India are produced in different order than the one provided.

Option 3: Pulses, wheat, rice, oilseeds. This option is not correct because the major agricultural food crops of India are produced in different order than the one provided.

Option 4: Sugarcane, rice, wheat, coarse cereals. This is the correct option. The major agricultural food crops of India, in descending order of production, are sugarcane, rice, wheat, and then coarse cereals. Sugarcane is the largest producer among the four crops, followed by rice and wheat. Coarse cereals are produced in smaller quantities compared to the other three crops.

Therefore, option 4 is the correct sequence of major agricultural food crops of India in descending order of production.