What is the correct sequence of operation priority for the following: ADDITION + SUBTRACTION, NUMERIC FUNCTIONS, MULTIPLICATION + DIVISION?

The correct sequence of operation priority is based on the standard mathematical rules, which dictate how calculations should be performed in order to achieve accurate results. In ABAP, as in other programming languages and mathematical contexts, the established order of operations is typically as follows:

1. Multiplication and Division have the highest priority, which means they should be calculated first.

2. Numeric functions, which can include functions like SUM or AVG, usually follow next. They operate on a range of data and are evaluated after basic arithmetic operations since they can involve calculations that transform or aggregate data.

3. Addition and Subtraction hold the lowest priority. These operations are executed last after addressing the other calculations.

Given this standard, the correct priority sequence would be numeric functions first, followed by multiplication and division, and finally addition and subtraction. Therefore, the sequence that aligns with these principles is 2, 3, 1, indicating that numeric functions will be evaluated first, then multiplication and division, and finally, addition and subtraction are dealt with last.

This aligns with choice C. The confusion arises from not recognizing that multiplication and division take precedence over addition and subtraction in the operational hierarchy commonly used in both mathematics and programming contexts.