5862 is to 714
and 3498 is to 1113
and 9516 is to 156
therefore 8257 is to ? Pick one:	A) 163	B) 134	C) 157	D) 189	E) 143
157   157   7 + 8= 
<gadget id="calculator">7 + 8</gadget>
<output>15</output>
15,   2 + 5= 
<gadget id="calculator">2 + 5</gadget>
<output>7</output>
7
<result>C</result>
5862 is to 714
and 3498 is to 1113
and 9516 is to 156
therefore 8257 is to ?