Which of the following most logically completes the argument? a new drug, taken twice daily for one month, is an effective treatment for a certain disease. the drug now most commonly prescribed for the disease occasionally has serious side effects such as seizures; in field tests, the new drug’s side effects, though no worse than mild nausea, turned out to be much more frequent. nevertheless, the new drug is clearly preferable as a treatment, since ) people who experience nausea are prone to discontinue use of the new drug prematurelyb) it is possible that the drug now most commonly prescribed has side effects that have not yet been attributed to itc) other drugs for the disease have typically been prescribed only for patients allergic to the most commonly prescribed drugd) people who have received effective treatment for disease do not generally contract the disease againe) there is a nonprescription medication that when taken with the new drug prevents the onset of nausea