A Client Has Been Admitted to a Healthcare Facility for Treatment

A client has been admitted to a healthcare facility for treatment for substance addiction. Shortly after entering the facility, the client received a prescription for phenytoin. Based on this data, which of the following statements is most likely true?

A) The client is addicted to opioids.
B) The client is experiencing cravings for nicotine.
C) The client has high levels of anxiety.
D) The client is experiencing withdrawal-related seizure activity.