Final answer:
The case that was not part of the Supreme Court's 'software-eligibility trilogy' is Williams & Wilkins v. United States.
Step-by-step explanation:
The correct option is 2. Williams & Wilkins v. United States. This case was not one of the Supreme Court's 'software-eligibility trilogy' of cases.
The 'software-eligibility trilogy' refers to three landmark Supreme Court cases that established the eligibility criteria for software patents. The cases in this trilogy are:
- Gottschalk v. Benson
- Parker v. Flook
- Diamond v. Diehr
Each of these cases contributed to the development of the legal framework for determining whether a particular software invention is eligible for patent protection.