Answer:
C
Step-by-step explanation:
#This a multiplication of a vector by a scalar quantity, a 1D product:
[tex]=4\left[\begin{array}{ccc}-2&5&0\\1&8&-1\end{array}\right] \\\\\\=\left[\begin{array}{ccc}-8&20&0\\4&32&-4\end{array}\right][/tex]
Hence the product of this matrix by a scalar quantity is(the correct answer being C):
[tex]\left[\begin{array}{ccc}-8&20&0\\4&32&-4\end{array}\right][/tex]
