A Local Veterinary Clinic Typically Sees 15% of Its Horses

A local veterinary clinic typically sees 15% of its horses presenting with West Nile virus. If 10 horses are admitted during July, what is the probability at least one of the 10 horses has been infected with West Nile virus?

A) 0.923
B) 0.177
C) 0.348
D) 0.803