The correct answer is: [B] Colon. Colon serves as the port located at the northern end of the Panama Canal. Situated on the Caribbean coast of Panama, Colon is a pivotal maritime gateway for vessels transiting the canal. It is strategically positioned to facilitate the efficient movement of cargo and vessels entering or departing the canal, contributing significantly to international trade and maritime commerce. Colon’s strategic location at the canal’s northern terminus underscores its importance as a key logistical hub in the region, connecting global shipping routes between the Atlantic and Pacific Oceans. Its infrastructure and facilities support the seamless flow of goods and commodities, playing a vital role in the economic activities of Panama and the broader international trade network.