What do the requirements of patentability generally include?

The requirements of patentability generally include novelty, usefulness, and non-obviousness, making the first choice the correct answer. Novelty ensures that the invention is new and has not been previously disclosed to the public. This is critical because if an invention has been publicly known or used before the filing date, it cannot be patented.

Usefulness, also known as utility, refers to the requirement that the invention must have some practical application or be capable of providing some identifiable benefit. It ensures that patents are granted only for inventions that can serve a real-world function.

Non-obviousness is another key requirement. This criterion means that the invention should not be an obvious improvement or modification of existing inventions to someone who is skilled in the relevant field. The purpose of this requirement is to encourage genuine innovation rather than simply recognizing incremental changes that lack significant advancement.

Other options like popularity, marketability, originality, innovation, and community approval, while they may pertain to various aspects of business and product development, do not form the basis of patentability under patent law. The requirements for patentability are strictly defined to focus on the technical and legal criteria surrounding inventions.