Tolentino Kennel uses tenant days as its measure of activity; an animal housed in the kennel for one day is counted as one tenant day. During November, the kennel budgeted for 4,600 tenant days, but its actual level of activity was 4,630 tenant days. The kennel has provided the following data concerning the formulas used in its budgeting and its actual results for November:

Data used in budgeting:

Fixed element per month Variable element per tenant day
Revenue ? $33.50
Wages and salaries $3,400 $7.60
Expendables 1,100 11.90
Facility expenses 8,900 3.20
Administrative expenses

9,700

0.40

Total expenses

$23,100

$23.10

Actual results for November:

Revenue $149,905
Wages and salaries $38,028
Expendables $57,553
Facility expenses $19,730
Administrative expenses $10,555
The net operating income in the flexible budget for November would be closest to:

A. $48,152
B. $25,052
C. $47,840
D. $24,740

The Show of Work would be greatly appreciated please!!