Write the Word or Phrase That Best Completes Each Statement $X=\left[\begin{array}{l}3514 \\ 3262 \\ 3486\end{array}\right]$

Write the word or phrase that best completes each statement or answers thequestion.
-Suppose the following matrix represents the input-output matrix of a simplified economy. How many units of each commodity should be produced to satisfy a demand of 1400 units for each commodity?

A) $X=\left[\begin{array}{l}3514 \\ 3262 \\ 3486\end{array}\right]$
B) $X=\left[\begin{array}{l}3486 \\ 3948 \\ 3262\end{array}\right]$
C) $X=\left[\begin{array}{l}3514 \\ 3920 \\ 3262\end{array}\right]$
D) $X=\left[\begin{array}{l}3920 \\ 3262 \\ 3514\end{array}\right]$