The answer is D it's the best option
pandemic is used to describe a disease that affects the whole country or the entire world. while epidemic is used to describe any problem that was grown out of control.
Plants and basically humans
If the patient and the caregiver are not in the right position when changing from the bed to the chair, a lot can go wrong. If the patient does not have the right support they could fall and injure themselves along with the caregiver and the caregiver needs to have the right angle to be able to support the patient because if they try to move too fast, the patient may get dizzy an the caregiver could easily hurt themselves too.