Compute the Riemann sum for the given function and region with partition of size n on the x axis and size m on the y-axis. f(x)= xy, 25x58, n=3, 8sys 12 m=2. using upper right corner evaluation point for each subrectangle.
a. 1450
b. 1558
c. 1584
d. 1200
e. 1185