Find the total number of students from a grade table.
\( \begin{array}{l} \text{Find the total number of students from the table below:} \\ \begin{array}{|c|c|} \hline \text{Grade} & \text{Frequency} \\ \hline A & 3 \\ B & 5 \\ C & 7 \\ D & 2 \\ \hline \end{array} \end{array} \)
Choose one option:
Ensure each frequency is counted once when summing.
Sum all frequencies to find total students in the table.
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