问题
根据矩阵数乘的运算规律，$($ $\lambda$ $+$ $\mu$ $)$ $\boldsymbol{A}$ $=$ $?$选项
[A]. $($ $\lambda$ $+$ $\mu$ $)$ $\boldsymbol{A}$ $=$ $\frac{1}{\lambda}$ $\boldsymbol{A}$ $+$ $\frac{1}{\mu}$ $\boldsymbol{A}$[B]. $($ $\lambda$ $+$ $\mu$ $)$ $\boldsymbol{A}$ $=$ $\lambda$ $\boldsymbol{A}$ $-$ $\mu$ $\boldsymbol{A}$
[C]. $($ $\lambda$ $+$ $\mu$ $)$ $\boldsymbol{A}$ $=$ $\lambda$ $\boldsymbol{A}$ $\times$ $\mu$ $\boldsymbol{A}$
[D]. $($ $\lambda$ $+$ $\mu$ $)$ $\boldsymbol{A}$ $=$ $\lambda$ $\boldsymbol{A}$ $+$ $\mu$ $\boldsymbol{A}$
$($ $\textcolor{orange}{\lambda}$ $+$ $\textcolor{cyan}{\mu}$ $)$ $\boldsymbol{A}$ $=$ $\textcolor{orange}{\lambda}$ $\boldsymbol{A}$ $+$ $\textcolor{cyan}{\mu}$ $\boldsymbol{A}$