Which of the following most logically completes the argument below?
Traditional treatments that fight cancer through the application of radiation and destructive chemicals pose a significant problem: how to destroy the cancer without losing the patient. For some individuals, enhanced genetic screening methods may reveal predisposition to the disease. Preventative treatment loses effectiveness upon the appearance of cancer cells. Therefore, genetic screenings will be especially effective for patients who _______.
【选项】
make an effort to refrain from activities known to cause cancer, as most doctors recommend
选项是否正确？