Given f$($x$)=(1/20)($x$+1)^3$ for X from $0\mathrm{.}0$ to $2\mathrm{.}0($continuous$).$ What is F$($x$)?$

Question $1$Select one:

a$.$

$(1/80)*($x$+1)^4$

b$.$

$(1/20)($x$+1)^3$

c$.$

$($x$+1)^2/2$

d$.$

$1$

e$.$

$($x$+1)^4/4$