<span>They probably want the Sherman Anti-trust Act of 1890, but regulation actually started in the 1840s when states began allowing anyone to form a corporation. Prior to that, corporations (like the Hudson Bay Company) were all quasi-governmental monopolies.</span>
<span>A complex system of writing.</span>
The answer is A. Imagine the 3 in 13 as a handcuff and the 1 as the key unlocking it