I think the answer would be causal research. It investigates on an issue looking for an effect of a certain variable to that issue or object. It is focused on the effect one factor to the subject of the research. Hope this answers the question.
The correct answer to this question is letter "d. a set number." Exit "immigration was restricted by assigning each nationality a quota based on its representation in past u.s. census figures." in this passage, the word <span>quota means a set of number.</span>
I believe the answer is: <span>British expeditionary force
</span><span>British expeditionary force was a group of soldiers that created in world war 2 in order to help the fight against nazi in the western front.
At that time, The French surrendered to the nazi only within 30 days the nazi's initial attack and the </span><span>British expeditionary force was sent there to help its ally. But the nazi's forces got the better of them in the combat and they're forced to escape from Dunkirk.</span>
The answer should be A: an economy that has a blend of both market in command economies
