Please choose the correct ending to complete the given sentence: Health: [header] How to tell if colorectal cancer has spread to your bones [title] Have x-rays taken of your bones. [step] Most cases of bone cancer can be identified through an x-ray of the bone. The affected bone may appear to be worn out instead of being firm or solid.

Ending1: A ct scan is also an option, if your bones are not disintegrating. X-rays are usually conducted either on one side of your body or in pairs. Ending2: [substeps] A hole-like structure in the bone can be indicative of cancer. There are also instances where the tumor around the bone becomes visible and is already affecting the surrounding tissues. Ending3: Examination of it will send the very important information to your doctor. [substeps] X-rays detect the presence of bacteria inside the bone surface, which helps your doctor determine whether cancer is present. Ending4: The x-rays are ideal for adults with general bone disease and areas where bone cancer and rheumatoid arthritis have not responded to treatment with antibiotics. The x-rays are usually taken as a preventive measure.

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