Answer:
B) serendipitous
Step-by-step explanation:
Serendipitous discovery is a type of discovery that occurs when unplanned events about things that are surprising are made, rather than being discovered through planned investigation. This type of discovery is mostly accidental or by chance. Casey’s idea that emanated from the accidental discovery of a problem computer engineers have, which led to the idea of coming up with a new product that is beneficial is simply an example of serendipitous discovery.