Answer:
b. lacked personal jurisdiction
Step-by-step explanation:
A court is said to lack personal jurisdiction when the offense or activity doesn’t take place in the location of the court or when the court isn’t situated in the state of origin of the defendant.
Ada filing the case against Chang at a court in Ohio which isn’t Chang’s state of origin and in which he has not visited before means that the court at Ohio lacks personal jurisdiction to progress with the case.