A worker had group health insurance coverage through her employer. The worker's household included her spouse, two natural children (ages 28 and 12), an adopted child (age 8), and the worker's mother (age 58). Who may be included under dependent coverage in the health insurance policy?
A) Spouse, adopted child, and natural children under 26
B) Spouse and natural children under 26
C) Only natural children under 26
D) Spouse, natural children, and adopted child of any age