Jerome Invents a Novel,useful,nonobvious Product.He

Jerome invents a novel,useful,nonobvious product.He:

A) must apply for a patent within one year of selling the product commercially.
B) is entitled to a patent over someone else who invents the same product if he is the first to file an application.
C) may receive patent protection for two years by filing a simpler, shorter, cheaper provisional patent application while he is working on his complex, regular patent application.
D) is not entitled to a patent unless he proves his invention is commercially profitable.