Final answer:
The correct interpolation interval cannot be determined without the specific data table. Interpolation refers to predicting values within the existing data range, as opposed to extrapolation, which estimates beyond that range.
Step-by-step explanation:
The question provided does not give a specific data table to reference for Georgianna's linear model. However, the concept of interpolating within a given dataset involves making predictions within the range of the existing data points. Therefore, without the specific data table, it is not possible to determine the correct answer from the options provided (A, B, C, or D). Interpolation is used for estimating values within the range of data, while extrapolation is used for estimating values outside that range. To accurately answer this question, a table with time values would be necessary.