Detailed Instructions: In this task, you are given a context and four options. Each option is a suggested ending for the context. You should read the context and pick the best ending for the context. Please answer with "A", "B", "C", and "D".
Problem:[header] How to plan a trip with aging parents [title] Make arrangements for medication. [step] Bring adequate supplies of any medications your aging parents might need. Keep medications in their original bottles whenever possible. <sep> (A) Place each bottle or container in a clear plastic bag labeled with its name, dosage size and frequency, and administration instructions. Medications without this information might not be allowed through airport security checkpoints. (B) This will help them prevent serious medical ailments. [substeps] Ask a family member or friend if there are any medications that the aging parent does not already need. (C) You don't want to drop them off in an emergency or accidentally give them away once again. [substeps] Choose prescription medications for your aging parent's specific needs. (D) If needed, set up a travel phone with an internet connection and a phone charger in case of emergencies. [substeps] Adequate doses should be measured and stamped within three weeks of treatment.
Solution:
A