A Person Claims His Newly Invented Device Treats Cancer Without

Multiple Choice

A person claims his newly invented device treats cancer without surgery,medication,or other forms of conventional medical therapy.However,people who have used the device report that it was not helpful,and it may have harmed them.According to this information,the inventor's claims and his device are

A) intuitive.
B) quackery.
C) legal.
D) unbiaseD.