$2\mathrm{.}4.$ If the internal rate of return $($IRR$)$ of Alternative A is $30\%,$ the IRR of Alternative B is $25\%,$ and

MARR is $20\%,$ which of the following is correct?

$($a$)$ Not enough information is given to determine which alternative is preferred

$($b$)$ Alternative A is preferred over Alternative B

$($c$)$ Alternative B is preferred over Alternative A

$($d$)$ Neither Alternative A nor Alternative B is acceptable