Which of these following integers is the square of an integer?  Pick one:
A) 20821304103	B) 20571304329	C) 20467304228	D) 20453304487	E) 20814304592
The unit digit of any perfect square can not be 2, 3, 7, or 8.   The answer is 20571304329.
<result>B</result>
Which of these following integers is the square of an integer?