What property justifies this equation :

Question

565 + 263 = 263 + 565

Identity property

Comunitive property of addition

Associative property of addition

Distributive property

Answer 1

What do you think?

http://www.aaastudy.com/add74ax1.htm

Answer 2

Comunitive

Answer 3

How about commutative?

Answer 4

Commutative property: When two numbers are added, the sum is the same regardless of the order of the addends.
Associative Property: When three or more numbers are added, the sum is the same regardless of the grouping of the addends.