As a Typical Example of a Bar Mark Number Assigned

As a typical example of a bar mark number assigned to a reinforcing bar shown on poured-in-place concrete drawings, 4A1 indicates ____.

A) a quantity of 4, bar type A, and length 1, where 1 is matched to the general legend for the drawings
B) a number 4 bar, type A, and quantity of 1 for this bar needed in the job
C) a number 4 bar, type A, and it is the first length of bar used in the job
D) the code for a particular bar type that is specified in the general legend for the drawings