Study the following picture : (pie chart with segments labelled Sheeps and Goats, Pigs, Others, Cattle and Buffalos, and Poultry, each accompanied by an illustration of the animal) Identify the kind of activities, which may be envisaged under ______ as diversification activity. (Fill up the blank with correct alternative.) Alternatives : ______ farming is a system that is helpful in restoring, maintaining and enhancing the ecological balance. (Choose the correct alternative to fill in the blank.) (A) Multi layered (B) Chemical (C) Organic (D) Conventional