Tosta 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 May, the kennel budgeted for 2,100 tenant-days, but its actual level of activity was 2,050 tenant-days. The kennel has provided the following data concerning the formulas used in its budgeting and its actual results for May: 
-The activity variance for net operating income in May would be closest to:
Definitions:
Doctor-Attended Hospital
A hospital where medical treatment and management are directly overseen by qualified doctors or physicians, ensuring professional healthcare services to patients.
American Dental Association
A professional organization that represents dentists in the United States and promotes dental health.
Medicare and Medicaid
Federal programs that provide health coverage in the United States; Medicare is for people over 65 or with certain disabilities, and Medicaid is for some low-income people, families, and children.
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