How Many Class 1's Are Incorrectly Classified as Class 0

Multiple Choice

How many Class 1's are incorrectly classified as Class 0? $$\begin{array} { | l | c | c | } \hline { \text { Classification Confusion Matrix } } \\\hline & { \text { Predicted Class } } \\\hline \text { Actual Class } & 1 & 0 \\\hline 1 & 221 & 100 \\\hline 0 & 30 & 3,000 \\\hline\end{array}$$ ?

A) 221
B) 100
C) 30
D) 3,000