Calculate the Left Riemann Sums for the Function Over the Given

Multiple Choice

Calculate the left Riemann sums for the function over the given interval, using the given values of n. (When rounding, round answers to four decimal places.) $f ( x ) = e ^ { - x }$ over $[ - 5,5 ] , n = 5$

A) Left sum = 343.2693
B) Left sum = 171.6346
C) Left sum = 1,716.3464
D) Left sum = 46.4564
E) Left sum = 34.3269