A cylindrical solid shape is shortened to save space in the drawing. Which of the following is (are) true?
A. The cylinder must have a constant shape throughout the entire length and cylindrical break lines are used.
B. A short, thick, slightly irregular break line is drawn to show that the cylinder has been shortened.
C. A jagged, thick, very irregular break line is drawn to show that the cylinder has been shortened.
D. both a and b
E. none of the above
Answer: A
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