The answer is d- <span>psychoneuroimmunology</span>
Every organism is unique, even though the nucleotides making up DNA are all the same, because the structure is different in every organism. In other words, it's just the order in which nucleotides are placed that differs each organism from one another.
Answer:
raising awareness programmes,keeping environment clean,being attentive in social activities ,etc.
I believe the answer is D. don't take my word for it though I may be wrong