Answer: The correct option is
(1) The commutative postulate for multiplication
Step-by-step explanation: We are given to select the correct postulate that is illustrated for the real numbers as follows :
6 . 12 = 12 . 6.
We know that
if a and b are any two real numbers, then the equality a . b = b . a illustrates the commutative postulate for multiplication.
So, if a = 6 and b = 12, then we get
6 . 12 = 12 . 6.
Thus, the illustrated postulate is the commutative postulate for multiplication.
Option (1) is CORRECT.