Answer:
The correct answer is letter "A": Inflation risk.
Step-by-step explanation:
Inflation risk is the inherent risk goods and services have that make them increase in price over time. This increase is the result of an overall increment of prices in the market due to an inflationary period an economy may suffer.
Most governments tend to regulate inflation by increasing the interest rate which will make banks lend less money from the central bank (the Federal Reserve in the U.S.) which implies financial institutions will have a moderate amount of money end-users can borrow.