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If $x\left[\begin{array}{r}-1 \\ 2\end{array}\right]+4\left[\begin{array}{r}2 \\ -y\end{array}\right]-\left[\begin{array}{r}7 \\ -8\end{array}\right]$, then the respective values of $x$ and $y$ are:

• A
  $-1, \frac{3}{2}$
• B
  $15, \frac{19}{2}$
• ✓
  $1, \frac{5}{2}$
• D
  $-1, \frac{5}{2}$