Explanation: Ship stations operating with radiotelegraphy (CW) emissions on frequencies below 27500 kHz are subject to specific power regulations. The maximum authorized power for these emissions, primarily used in the MF and HF bands, is 3 kW peak envelope power (PEP). This limit is established by international regulations, implemented by the FCC in Part 80 of its rules, to ensure reliable long-distance communication while managing spectrum usage and minimizing interference. Options A (400 W), B (2 kW), and D (1 kW) are incorrect. While 2 kW is a common power limit for radiotelephony (voice) emissions on MF/HF, and other power levels may apply to specific services or equipment, the maximum for radiotelegraphy is distinctly 3 kW.