Final answer:
In programming, a function with 2 integer parameters can be correctly started with the definition 'def addNumbers(num1, num2):', adhering to Python's syntax and formatting rules. The concept of the commutative property in mathematics, such as 'A+B=B+A', applies to such functions. So option (b) is correct.
Step-by-step explanation:
A function with 2 integer parameters could start with the definition b. def addNumbers(num1, num2):. In programming, particularly in languages like Python, a function is defined using the keyword 'def', followed by the function name and a set of parentheses which include parameters. The correct syntax for defining a function adheres to the naming conventions and syntax rules of the programming language.
The given example, A+B=B+A, illustrates the commutative property of addition, which states that the order of addition does not affect the sum. This is a concept from mathematics that applies to programming as well when dealing with numerical operations. When you write a function to add numbers, such as addNumbers, it doesn't matter in which order you pass the integers; you will get the same result.