A Florist Is Creating 10 Centerpieces for the Tables at a Wedding

Multiple Choice

A florist is creating 10 centerpieces for the tables at a wedding reception.Roses cost $2.50 each,lilies cost $8 each,and irises cost $4 each.The customer has a budget of $300 allocated for the centerpieces and wants each centerpiece to contain 12 flowers,with twice as many roses as the number of irises and lilies combined. ​
Write a system of linear equations that represents the situation.
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A) $$\left\{ \begin{array} { l l } 2.5 r - 8 l - 4 i & = 300 \\- r - 2 l - 2 i & = 0 \\r - l - i & = 120\end{array} \right.$$
B) ​ $$\left\{ \begin{array} { l l } 2.5 r + 8 l + 4 i & = 300 \\r + 2 l + 2 i & = 0 \\r + l + i & = 120\end{array} \right.$$
C) ​ $$\left\{ \begin{array} { l l } 2.5 r + 8 l + 4 i & = 300 \\- r + 2 l + 2 i & = 0 \\r + l + i & = 120\end{array} \right.$$
D) ​ $$\left\{ \begin{array} { l l } 2.5 r - 8 l + 4 i & = 300 \\- r + 2 l + 2 i & = 0 \\r + l + i & = 120\end{array} \right.$$
E) ​ $$\left\{ \begin{array} { l l } 2.5 r + 8 l - 4 i & = 300 \\- r + 2 l + 2 i & = 0 \\r + l + i & = 120\end{array} \right.$$