Final answer:
The rearrangement of terms from a - 4 + 7a + 11 to a + 7a - 4 + 11 demonstrates the Commutative Property of addition, which means the order of addition does not affect the sum.
Step-by-step explanation:
The question deals with understanding algebraic properties, particularly when rearranging terms of an expression. The expression provided has been changed from a - 4 + 7a + 11 to a + 7a - 4 + 11. This rearrangement didn't distribute or associate any terms together; instead, it simply changed the order of the terms. This change reflects the Commutative Property of addition, which states that the order in which two terms are added does not change the sum, as indicated by A + B = B + A.
In summary, Step one uses the Commutative Property (Option B) as it rearranges the terms of the equation without affecting their sum.