Which selection best defines the phrase "at bay" as it is used in the last sentence in paragraph six?
Lycopene, an amino acid found in abundance in tomatoes and tomato-based products such as tomato sauce and paste, has been proven to be a preventative for many types of cancer. Vitamins and minerals found in green, leafy vegetables such as spinach and broccoli are also rich in cancer preventing antioxidants. Julianne also heeded her doctor’s advice to exercise regularly and to engage in activities such as yoga or meditation to help manage stress and keep cancer at bay.
A) painful
B) in the water
C) untreatable
D) from recurring