Final answer:
The source written by Crichton that the question refers to is 'Jurassic Park', which is a famous science fiction novel adapted into a successful film series.
Step-by-step explanation:
The title of the source written by Crichton is A. Jurassic Park. Michael Crichton was a best-selling author known for writing thrilling science fiction and medical novels. Among his numerous works, 'Jurassic Park' is one of the most recognized, which was later adapted into a highly successful film franchise. 'The Andromeda Strain', 'Sphere', and 'State of Fear' are also works by Crichton, showcasing his diverse range within the genre.