${?}_{{?}_{{?}_{?}}{?}_{{?}_{?}}\text{r}\text{e}\text{f}\text{e}\text{r}\text{s}to\text{h}\text{o}\text{w}\text{m}\text{u}\text{c}\text{h}\text{a}\text{c}\text{u}\text{s}\text{t}\text{o}\text{m}\text{e}\text{r}\text{w}\text{i}\text{l}\text{l}\text{s}\text{p}\text{e}\text{n}\text{d}in\text{t}\text{h}\text{e}\text{f}\text{u}\text{t}\text{u}\text{r}\text{e}\text{.}}$

$A.$

Customer Value

$B.$

Projecte Rate$-of-$Return

$C.$

Life Time Value

$D.$

Value Proposition