Consider the integral ∫62x1 x5dx. Which of the following expressions represents the integral as a limit of Riemann sums? A. limn→∞∑i=1n2 4in1 (2 4in)5 B. limn→∞∑i=1n4n2 4in1 (2 4in)5 C. limn→∞∑i=1n6n2 6in1 (2 6in) D. limn→∞∑i=1n2 6in1 (2 6in)5 E. limn→∞∑i=1n6n2 6in1 (2 6in)5 F. limn→∞∑i=1n4n2 4in1 (2 4in)