Answer:
A political protest that occurred on December 16, 1773, at Griffin's Wharf in Boston, Massachusetts. American colonists, frustrated and angry at Britain for imposing “taxation without representation,” dumped 342 chests of tea, imported by the British East India Company into the harbor.
I believe it is D. Purchasing slaves was a time consuming a difficult. But I'm not totally sure.
<span>The biggest problem faced by the early Byzantine engineers was that the growth of the city far outpaced the growth in its resources, so water and food had to be brought from the outside.The city was also under constant threat of invasion by Germanic tribes to the north and east and needed to be heavily fortified, making moving resources into the city a bit more difficult.</span>