In the early twentieth century, leprosy was considered a terminal and highly debilitating disease, with patients often exiled to isolated colonies. At the College of Hawaii, young chemist Alice Ball undertook the challenge of finding an effective treatment. She focused on chaulmoogra oil, a natural substance that had shown therapeutic promise but was extremely difficult for the body to absorb. Ball successfully developed a chemical method to isolate the active ethyl esters from the oil, creating the first water-soluble, injectable treatment for the disease. [1]
The writer wants to add a concluding sentence at point [1] that wraps up the discussion of Ball's scientific achievement and highlights its immediate impact on patients. Which of the following sentences best accomplishes this goal?
- AFurthermore, chaulmoogra oil was harvested from the seeds of the Hydnocarpus wightianus tree, which is native to India.
- BHer method became the standard of care for decades, it was eventually replaced by synthetic antibiotics in the 1940s.
- This breakthrough allowed hundreds of patients to be discharged from hospitals and return to their families.Answer
- DUltimately, patients, who received the injection, showed immediate signs of recovery.