Suppose S₅ is the Lower Sum of the Area Enclosed $f ( x ) = x ^ { 2 } + x,$

Multiple Choice

Suppose S₅ is the lower sum of the area enclosed by the graph $f ( x ) = x ^ { 2 } + x,$ the x-axis, and the lines x = 0 and x = 10 by partitioning [0, 10] into five subintervals [0, 2], [2, 4], [4, 6], [6, 8], and [8, 10]. Then S₅ is

A) 240
B) 260
C) 280
D) 300
E) 320