The correct answer is B) International Maritime Organization. The Safety of Life at Sea (SOLAS) Convention was developed by the International Maritime Organization (IMO), which is the United Nations agency responsible for regulating international maritime activities. The SOLAS Convention is the most important international treaty concerning the safety of merchant ships, and it was first adopted in 1914 in response to the sinking of the RMS Titanic. The IMO, as the international body governing maritime affairs, was responsible for developing and maintaining the SOLAS Convention over the years. The other options are incorrect because the American Bureau of Shipping is a classification society, the American Institute of Maritime Shipping is not an international organization, and the U.S. Coast Guard, while a key player in maritime safety, did not develop the SOLAS Convention, which is an international agreement.