Cow dung is appropriately used as:
A. Manure
B. Fuel
C. Medicine
D. Building Material

Hint: Cow dung, otherwise called cow taps, cow pies, or cow compost, is the byproduct (excrement) of cow-like creature species. These species incorporate homegrown steers ("cows"), buffalo ("bison"), yak, and water wild ox. Bovine dung is the undigested buildup of plant matter which has gone through the creature's gut. The resultant fecal issue is plentiful in minerals. Shading goes from greenish to blackish, frequently obscuring not long after the presentation to air.

Complete answer:
Dairy animal dung is accessible in bounty in India. It is utilized as compost or pattings for fuel. The cow dung has antifungal and bug spray properties. The use of cow dung likewise improves soil saltiness and alkalinity. The presence of this excrement helps in better nitrogen obsession through rhizobia. In numerous pieces of the creating scene, and the past in mountain locales of Europe, solidified and dried cow dung is utilized as fuel. Dung may likewise be gathered and used to deliver biogas to produce power and heat. They are used in horticulture as a pesticide, fertilizer, and go about like a dirt rejuvenator. Bovine dung is utilized for bioenergy creation by aging and gasification.
Hence, option A is right.

Note: Cow dung gives food to a wide scope of creature and organism species, which separates it and reuse it into the evolved way of life and the soil. Cattle have a characteristic repugnance for taking care of their dung. This can prompt the arrangement of taller ungrazed patches of intensely prepared turf.