Answer:
The brief answer is that globalization has generated gaps in security in the food supply chain. As a result recalls are rising. However, food production, packaging, warehousing, shipping and supply chain technology has all evolved to seal these gaps.
Explanation:
To promote the growth of vegetation, Aborigines from Australia created grass fires to encourage new growth in vegetation and to allow the wild animals to eat the new plants resulting from the grass fire. They also used grass fires in order to roast some seeds that germinate only when burned. In return, these seeds provide them food.
It is most likely B and C
