Incomplete question. I inferred you want an explanation of the term parallelism.
<u>Explanation</u>:
The term <u>parallelism</u> is a literary device used in speech or literature. It involves the use of words or phrases with a close grammatical structure. It means<em> the words or phrases are used repeatedly in other to create a clearer understanding of what is been said.</em>
For example, Roosevelt used the expression "It can be helped by" repeatedly in the excerpt below,
<em>"</em><u><em>It</em></u><em> [a better use of the Nation’s natural resources]</em><u><em> </em></u><u><em>can be helped by </em></u><em>insistence that the Federal, State, and local governments act forthwith on the demand that their cost be drastically reduced. </em><u>It can be helped by </u><em>the unifying of relief activities which today are often scattered, uneconomical, and unequal. </em><u><em>It can be helped by </em></u><em>national planning for and supervision of all forms of transportation and of communications and other utilities which have a definitely public character."</em>
By so doing he was able to make the problems stand out.
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Answer:
While Muslims are found on all five inhabited continents, more than 60% of the global Muslim population is in Asia and about 20% is in the Middle East and North Africa. However, the Middle East-North Africa region has the highest percentage of Muslim-majority countries.
Explanation:

Answer:
A i guess
Explanation:
a i guess....................
Short answer: The pronoun "that" precedes details about the noun that are essential, while the pronoun "which" precedes those that are non-essential or can be eliminated without changing the meaning of the sentence.
Explanation:
In grammar, the function of "which" and "that" is to precede or introduce clauses, especially those that provide information about the noun. Additionally, these two words differ slightly on their function because they introduce specific types of clauses.
Indeed, the use of "that" shows the information introduced is essential or cannot be eliminated as in the sentence "My sister that is living in Europe get married" because the detail "is living in Europe" is essential to define "My sister". This does not occur with "which" because this precedes information that can be eliminated or it is not essential as in "My car, which is brand-new, just broke down" because in this sentence the key information is that the car broke down.
Answer:
I would like to say a and b