Answer two questions about Systems AAA and BBB: System AAA \text{\quad}start text, end text System BBB \begin{cases}x+3y=-92x+y=4\end{case s} ⎩ ⎪ ⎪ ⎨ ⎪ ⎪ ⎧ ​ x+3y=−9 2x+y=4 ​ \begin{cases}3x+4y=-92x+y=4\end{cas es} ⎩ ⎪ ⎪ ⎨ ⎪ ⎪ ⎧ ​ 3x+4y=−9 2x+y=4 ​ 1) How can we get System BBB from System AAA? Choose 1 Choose 1 (Choice A) A Replace one equation with the sum/difference of both equations (Choice B) B Replace only the left-hand side of one equation with the sum/difference of the left-hand sides of both equations (Choice C) C Replace one equation with a multiple of itself (Choice D) D Replace one equation with a multiple of the other equation 2) Based on the previous answer, are the systems equivalent? In other words, do they have the same solution? Choose 1 Choose 1 (Choice A) A Yes (Choice B) B No