I'd say D. Radiopharmaceuticals target specific receptors on tumour cells. While there is a 'bystander effect' to neighbouring tissue, it is limited. Brachytherapy affects local tissue, next to where the beads are placed.
Answer:
Hydrochloric acid from the stomach is escaping through the cardiac sphincter into the esophagus.
the answer to your question should be 4.Allergens
Please Rate and Thanks me if I helped
