Q$2.($a$)$ What is Internal Rate of Return and why it is important in selecting options for investment? $(5$ marks$)($b$)$ Calculate the internal rate of return for the following three projects if their net cash flows and cost of capital are tabulated as follows: $\backslash$begin$\{$tabular$\}\{|$c$|$c$|$c$|$c$|\}\backslash$hline Year & Project A $($in $\backslash$$$1,000)$ & Project B $($in $\backslash$$$1,000)$ & Project C $($in $\backslash$$$1,000)\backslash \backslash \backslash$hline $0$ & $-80$ & $-90$ & $-100\backslash \backslash \backslash$hline $1$ & $12$ & $24$ & $-10\backslash \backslash \backslash$hline $2$ & $15$ & $21$ & $10\backslash \backslash \backslash$hline $3$ & $18$ & $18$ & $30\backslash \backslash \backslash$hline $4$ & $21$ & $15$ & $50\backslash \backslash \backslash$hline $5$ & $24$ & $12$ & $70\backslash \backslash \backslash$hline $6$ & $27$ & $9$ & $0\backslash \backslash \backslash$hline $\backslash$end$\{$tabular$\}(9$ marks$)($c$)$ Evaluate again which project is the best if now the cost of capital to finance the option is $\backslash (4\backslash \%\backslash ).(2$ marks$)($d$)$ In the question, is there any project should not be selected if the cost of capital now is $\backslash (5\backslash \%\backslash )?(2$ marks$)$