Unlike Complementary Healthcare Methods, Which Are Acceptable Modalities Used in Place

Unlike complementary healthcare methods, which are acceptable modalities used in place of or along with conventional Western methods, many fraudulent healthcare practices and treatments are on the market. According to estimates, how much does the public spend on fraudulent healthcare practices per year?

A) 15 billion dollars
B) 20 billion dollars
C) 25 billion dollars
D) 30 billion dollars