British Blockades made it difficult for the US to trade with the central powers.
Hope I helped.
26: Spartans
27 Athens
28.Athens
29:Spartans
30:Athens
<span>The idea that people succeed in this world not because of their ability to compete, but, because of their ability to cooperate
- Reform Darwinism. </span>
<span>Persia would be the most likely location. With Merv being in the very center and Persia being right in the middle between Syria and China, Persia is most certainly the most common meeting place for people coming from the far ends of each side of the silk road.</span>
Answer: (C) The placebo effect
Explanation:
The placebo effect is one of the type of treatment that is specifically designed for control all the therapeutic values and this effect is basically works on the various types of symptoms that is generated by our brain.
It includes the various types of procedures, inert injections and the tablets. The researcher utilized various types of placebo effect controlling system so that they can easily assess our memory.
According to the given question, the given situation is due to the placebo effect as they can easily determine the quantity of caffeine in the memory.
Therefore, Option (C) is correct.