The number 5427 is divisible by 9 because:A) The sum of the digits of 5427 is divisible by 9.B) The last two digits of 5427 form a number divisible by 9.C) The first two digits of 5427 form a number divisible by 9.D) The sum of the last two digits of 5427 equal 9.

The correct answer is A) The sum of the digits of 5427 is divisible by 9.

Here's the step by step process:

Step 1: Add all the digits of the number 5427. 5 + 4 + 2 + 7 = 18

Step 2: Check if the sum (18) is divisible by 9. 18 ÷ 9 = 2

Since 18 is divisible by 9, we can conclude that the original number 5427 is also divisible by 9. Therefore, option A is correct.

The correct answer is A) The sum of the digits of 5427 is divisible by 9.

Here's the step by step process:

Step 1: Add all the digits of the number 5427. 5 + 4 + 2 + 7 = 18

Step 2: Check if the sum (18) is divisible by 9. 18 ÷ 9 = 2

Since 18 is divisible by 9, we can conclude that the number 5427 is also divisible by 9. Therefore, option A is correct.