Kindly answer ASAP very URGENT referencing required

a) Why might a variable rate mortgage be considered a "derivative" and a fixed rate mortgage not? [2 Marks b) Why would a corn farmer, who maintains a short futures contract after harvesting and selling her crop, be considered a speculator? 12 Marks c) For families employed and living in "company towns" (i.c., where the major employer owns all homes, retail stores, etc.), explain the lack of diversification. 12 Marks d) Describe the concept of a bid-ask spread and how that impacts the cash flows of an investor. 12 Marks e) What would cause the spread between the market rate of interest and the repo rate to be small? 12 Marks O BI *