According to the Public Use Doctrine for Patents,________

Multiple Choice

According to the public use doctrine for patents,________.

A) a patent will not be granted if the invention was already in public use for one year before filing an application
B) an invention cannot be used in the public domain prior to it being granted a patent
C) an inventor has to test his invention in the public domain, to measure its validity, before being granted a patent
D) a patent will always be under the first inventor's name unless he or she chooses to release it into the public domain