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You have performed the calculations for 2019, so now you move on to 2020. To return average contributions in 2020 (contributions_2020), you use the AVG function. You use the following section of a SQL query to find this average and store it in the AvgLineTotal variable:

Correct
To return average contributions in 2020, the correct portion of the SQL query is:
AVG(contributions_2020) AS AvgLineTotal

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