I want to say Los Angeles.
The answer is D.
The theory of continental drift more or less states that the continents move apart, so in order of most 'together' is B, C, A. The answer that corresponds is D.
<span>There wasn't many vaccinations back in the day and medicine slowly developed through years passing by. Also eras such as the Black plague and others really helped develop medicines and vaccinations moving forward for people to use.
Hope this helps.</span><span />
