Given the measurements for the stub-up (17 7/8 inches) and the leg (20 5/8 inches), calculate the distance to the bending reference mark (take-up mark) for the 1/2-inch EMT stub-up.
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Select one:
a. 12 7/8"
b. 15 5/8"
c. 17 7/8"
d. 20 5/8"