Canwell Developed a Chemical Formula That It Began Selling

Canwell developed a chemical formula that it began selling.Just over a year later,it applied for a patent.Which of the following statements would be true?

A) Canwell was entitled to a patent,as all necessary elements had been satisfied.
B) Canwell was not entitled to a patent.A corporation cannot seek patent protection,only an individual can.
C) Canwell was not entitled to a patent.A formula cannot qualify as an invention capable of being protected by patent.
D) Canwell was not entitled to a patent.Patent protection can only be extended to mechanical,not chemical,inventions.
E) Canwell was not entitled to a patent.To qualify as "new," the invention must not have been disclosed more than one year prior to application.