I believe that the answer is experimentation.
Answer:
E. how the use of a product spreads throughout a population
Explanation:
Diffusion is the process by which a new idea or new product is accepted by the market. The rate of diffusion is the speed with which the new idea spreads from one consumer to the next.
After India declared their independence, what changes occurred to the nations of South Asia? -Pakistan and Bangladesh were inspired to declare independence -Afghanistan's king was forced to resign -Sri Lanka began fighting a civil war -India was partitioned<span> into two nations, ...</span>
It as invented in 1876
So, the answer is : D ) 1876
-Hope this helps
