What feature is commonly used on articulated reduction gear arrangements for the correction of misalignment between the 1st reduction gear and the 2nd reduction pinions?

Correct Answer: Option A — Quill shafts.

Quill shafts are flexible, torsionally resilient shafts used in articulated reduction gears. They accommodate minor misalignments between the first reduction gear and the second reduction pinions, preventing excessive stress and ensuring smooth power transmission through the gear train.