I wanna say both A and D but its most likely A.
Answer:
Conventional or stylistic decorative design is an adaptation from nature. Naturalistic design is a realistic adaptation from nature. Abstract and geometric decorative design has no direct relation to nature.
All of the animals on the farm are called for a meeting.
I guess it would be easier for us to define the disadvanatges if you tell us about the technologies you want to mention. For example, it is hard to think of technology and nature together but even advances like Artificial Intelligence (AI) that could not be further removed from the natural world are helping conservation efforts. Well, at least I tried to answer your question. More help you can get if you check the tips at Prime Writings site. Good luck with it!