Mark the tick against the correct answer in the following:

Mark the tick against the correct answer in the following:

$\left|\begin{array}{ccc}\mathrm{b}+\mathrm{c} & \mathrm{a} & \mathrm{a} \\ \mathrm{b} & \mathrm{c}+\mathrm{a} & \mathrm{b} \\ \mathrm{c} & \mathrm{c} & \mathrm{a}+\mathrm{b}\end{array}\right|=?$

A. $4 a b c$

B. $2(a+b+c)$

C. $(a b+b c+c a)$

D. none of these