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A classifier outputs predictions for 3 classes (A, B, C). The confusion matrix is:
CM=[305032520228]\text{CM} =
\begin{bmatrix}
30 & 5 & 0 \\
3 & 25 & 2 \\
0 & 2 & 28
\end{bmatrix}
Where rows = true labels, columns = predicted labels.
What is the recall for class B?