How many four-digit numbers are there, if the two leftmost digits are even, the other digits are odd and the digit 4 cannot appear more than once in the number.  Choose the correct option:
A) 480	B) 475	C) 485	D) 490	E) 495
N=(4*5-1)*5*5= 
<gadget id="calculator">(4*5-1)*5*5</gadget>
<output>475</output>
475   where   4 cases of first digit {2,4,6,8}   5 cases of second digit {0,2,4,6,8}   1 case of 44 for two leftmost digit   5 cases of third digit {1,3,5,7,9}   5 cases of fourth digit {1,3,5,7,9}   475
<result>B</result>
How many four-digit numbers are there, if the two leftmost digits are even, the other digits are odd and the digit 4 cannot appear more than once in the number.