The correct answer is C. Processing.
The IPO chart is a tool used to design algorithms. It stands for Input, Processing, Output. The input column lists the data that the algorithm will need to process. The processing column lists the steps that the algorithm will take to process the data. The output column lists the results of the algorithm.
In the IPO chart, the algorithm is recorded in the processing column. This is because the processing column is where the steps of the algorithm are listed. The steps of the algorithm are the instructions that the computer will follow to process the data.
The other options are incorrect. The input column lists the data that the algorithm will need to process. The output column lists the results of the algorithm. The purpose column lists the reason for the algorithm.