Alright, let's go through what these mean
- A is saying that you can group numbers in parenthesis differently for multiplication. Since this does not involve multiplication, this is not applicable.
- B is saying that you can expand numbers in parenthesis by multiplying it out.Since this does not involve multiplication, this is not applicable.
- C is saying that numbers multiplied by each other can be switched. Since this does not involve multiplication, this is not applicable.
- D is saying that you can group numbers in parenthesis differently for addition . Since this involves grouping numbers differently in parenthesis, this is correct!