$4.)$ this question is worth $1$ point

$($LO$2)$ Which condition$($s$)$ must be met in order to correctly use the SUMPRODUCT function

a$.$ Used to solve equations of the type $=B{1}^{**}x1+B{2}^{**}x2+B{3}^{**}x3$

c$.$ Both ranges need to be the same size and shape

b$.$ The structure is SUMPRODUCT$($array$1,$ array$2)$

d$.$ All of the available choices