Masonry codes such as ASTM C$270$ and CSA A$179$ provide guidelines for the proportioning of mortar components to ensure that the required strenght and workability of the mortar mix is achieved. The volume of sand that is recommended ranges between $\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_$ times the sum of the volumes of cement and lime$.$

$1$ and $2$

$2$ and $3$

$21/4$ and $3$

$21/2$ and $3$