Answer: a. DN
Explanation:
The Minimum Acceptable Rate of Return (MARR) which is also known as the Hurdle Rate is the rate of return that will be earned by an investment to ensure that it will cover its cost.
This means that below the MARR, the project will bring in less than the costs it incurred. This is therefore not ideal.
The rate of return on each increment was less than the MARR of 17% which means that they are not profitable.
The company should not invest or rather Do Nothing.