Which of the Following Statements Is True

Multiple Choice

Which of the following statements is true?

A) The diameter of the bore of a rifled firearm is its gauge.
B) Carbonaceous smoke or soot deposited around a bullet hole is normally indicative of a discharge 12 to 18 feet or less from the target.
C) The comparison microscope is an indispensable tool of the firearm examiner.
D) A bullet can be individualized to a weapon by the number and twist of its lands and grooves.
E) All of the above statements are true.