? 370 860 1550 2440 3530	Choose the correct option:
A) 900
B) 840
C) 750
D) 860
E) 80
10^2 - 20 = 80   20^2 - 30 = 370   30^2 - 40 = 860   40^2 - 50 = 1550   50^2 - 60 = 2440   60^2 - 70 = 3530.   ANSW80R:80
<result>E</result>
? 370 860 1550 2440 3530