If i like the answer i will give brainliest! primse i will give 30 points, i lie yall get 10 points but brainliest! ; )

which of the following situations would be likely to cause scarcity?

a) canals and roads that improved trade across longer distances

b) a natural disaster which destroyed many farms in a region

c) one group taking control of all agricultural production in a region

d) lack of money to purchase improved equipment for farming