USA is the country in which the metric system is not followed. Hence option A will be the correct answer.
All the other countries uses metric system for their units. Due to this season there is no confusion in conversion of the units. But England has special case, its distance is measured in miles and the speed is measured in miles per hour.
The other units are measured in metric uniform. Other than USA there are two more countries which do not accepts the metric unit system they are Liberia and Burma.
A genetic test to detect predisposition to cancer would likely examine the APC gene for involvement in colorectal cancer.
Adenomatous polyposis coli is known as APC. An individual has a higher lifetime chance of developing many colorectal polyps (from ten to hundreds) as well as colorectal cancer if they have a genetic mutation that interferes with the operation of the APC gene. Colon cancer can strike anyone at any age, but it often strikes older persons. Small, benign (noncancerous) cell clusters called polyps commonly grow on the interior of the colon as the first signs of the condition. Some of these polyps may eventually develop into colon cancer.
To learn more about colorectal cancer and APC here,
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