Respond to ONE of the following:Question ASarah invents a type of cartridge for ink for copy machines. The cartridge is identical to previous cartridges invented by others, although it is slightly smaller. Is the invention patentable? Discuss.Question BAlex has been working on inventing a new type of dog leash for nearly two years. Last month, his friend Andrew looked at the leash and made a suggestion to Alex about the leash that Alex then adopted. Alex filed a patent application for the leash, and Andrew is now claiming he is a co-inventor. Discuss whether Andrew and Alex are joint inventors.