Definition: You are given a question on prehistory. You are also given 4 answer options (associated with "A", "B", "C", "D"), out of which only one is correct. You need to answer the question by selecting the correct option. You should only answer with the choice letter, not the whole answer.
Input: The Minoan economy may have been especially vulnerable to natural catastrophe because it relied heavily on:
(A)agriculture (B)maritime trade (C)metalworking (D)slave labor

B