$2.$ Based on the above, for Opportunity Y$,$

a$.$ What is the NPV of Opportunity Y$?$

b$.$ Payback Period $($Non$-$Discounted$)$ occurs in which Year $?$ Do not use fractions of a Year or decimals. Simply list the whole number of when $($year$)$ the return becomes positive.

c$.$ Payback Period $($Discounted$)$ occurs in which Year? Do not use fractions of a Year or decimals. Simply list the whole number of when $($year$)$ the return becomes positive. If payback is longer than $5$ years, you can enter "greater than $5."$

d$.$ What is the IRR $($Internal Rate of Return$)?$ Round to the nearest $\%.$