The correct answer is B) Follow the procedures outlined in the vessel's Shipboard Oil Pollution Emergency Plan (SOPEP) manual. This is the correct answer because the SOPEP manual provides the specific procedures to be followed in the event of an oil spill incident, as required by international regulations such as MARPOL. The SOPEP outlines the steps to be taken to contain and mitigate the spill, report it to authorities, and implement cleanup measures. This is the appropriate response, rather than referring to the Oil Record Book, SOLAS manual, or Fuel Oil Transfer Procedures, which do not directly address oil spill response protocols.