For a rectangular Douglas fir section, a cantilever beam with a $10-$ft span will carry a uniform load of $750$ lb$/$ft$.$ S required and A required are:

$($Select two answers$)$

Select $2$ correct answer$($s$)$

Question $1$ options:

S required$=419$ in$3$

A required$=119$ in$2$

S required$=119$ in$3$

A required$=311$ in$2$

S required$=419$ in$2$

S required$=311$ in$3$