Option 1: The statement "Their average is (a + 4)" is incorrect. Since the numbers are consecutive odd numbers, the average should fall in the middle of the sequence. In this case, the average would be (a + c + e)/3 = a + 2.

Option 2: The statement "Their average is (^ + 2)" is correct. As explained above, the average of consecutive odd numbers is in the middle of the sequence. The middle number can be represented as (a + c + e)/3 = a + 2. Therefore, (^ + 2) represents the correct average.

Option 3: The statement "Their average is (^ - 4)" is incorrect. Again, the average of consecutive odd numbers should be in the middle of the sequence. Therefore, (^ - 4) does not represent the correct average.

In summary, option 2 is the only correct statement. The average of five consecutive odd numbers in ascending order can be represented as (^ + 2).