All of the Following Statements About Patents Are True Except

Multiple Choice

All of the following statements about patents are true except:

A) it is more difficult to obtain a copyright than it is to obtain a patent.
B) the four types of inventions protected by patent law are machines, manmade products, compositions of matter, and processing methods.
C) computer programs can be patented.
D) in order to be patented, an invention must be nonobvious.