Answer and explanation:
-Portugal was at the forefront of the overseas expansion thanks to its privileged geographical position in Europe, as it had the wider Atlantic coast and that facilitated the development of navigation and commerce.
Portugal developed a strong maritime and commercial tradition due to being facing the sea.
-Plantations dedicated to the production of sugar were established in the Madeira Islands, near the African coast.
-Thanks to the riches within their seas, they are an interesting option for exploration.