Which of the following situations related to oral chemotherapy treatment is most likely to result in serious adverse eff

[answerhappygod]

Which of the following situations related to oral chemotherapy
treatment is most likely to result in serious adverse
effects?
A. A patient obtains a refill of the prescription and continues
to take the medication during the "off week".
B. A family member brings the medication bottle and dosing
schedule to the follow-up appointment.
C. A patient misses a follow-up appointment because he is unable
to pay for transportation to the clinic.
D. The new cycle of treatment is delayed because the medication
is unavailable from the pharmacy.