The correct option is C Portugal
Under the sponsorship of Prince Henry (famously known as Prince Henry the Navigator), Portugal started exploring the Atlantic coast of Africa at the beginning of 15th century. Prince Henry provided the most advanced navigation instruments and techniques to the sailors of his country. Under his directions, the Portuguese developed a modern, lighter ship, the caravel, which could sail further and faster. Portuguese monarchy offered financial help for ship owners for securing the investments of overseas expeditions.