A smooth, tapered pin, usually of wood, used to open up the strands of a rope for splicing is called a(n) __________.

Correct Answer: Option B — fid

Fids are essential marlinspike seamanship tools designed to open strands of fiber rope. Unlike a metal marlinspike used for wire, the fid's smooth, tapered wooden or plastic construction prevents fiber abrasion, allowing for precise strand manipulation during the creation of eyes or splices.