Final answer:
The Sea Beggars were privateers enlisted by the leaders of the Dutch Revolt to attack and plunder Spanish vessels and towns.
Step-by-step explanation:
The correct answer is Sea Beggars (B)
During the Dutch Revolt, the leaders of the Dutch Republic enlisted privateers from various nationalities to attack and plunder Spanish vessels and Spanish-controlled towns. These privateers were commonly known as Sea Beggars. They played a significant role in disrupting Spanish commerce and weakening their control in the region. The Sea Beggars were instrumental in the Dutch Republic's struggle for independence from Spain.