How does the map develop the central idea of the passage?

The vast Muslim world was wonderful for the
growth of knowledge. The Greeks had developed
a level of practical experience and technical
understanding a thousand years more advanced
than anyone else nearby. The Muslims began to
translate some of these ancient Greek texts. From
India, Muslims learned of the zero, which
allowed them to invent what we still call "Arabic"
numerals. And because the Koran, the sacred
book of Islam, is written in Arabic, scholars
throughout the Muslim world learned to read
Arabic and to share their knowledge. The
Muslims swept past Jundi Shapur and learned
the secrets of sugar. As they conquered lands
around the Mediterranean Sea, they spread word
o It provides a visual representation of lands
conquered by Muslims.
It shows the regions that benefited from Muslims'
Aknowledge of sugar.
O It illustrates how the growth and refining of sugar
led to Muslim conquests.
It demonstrates that Muslims grew sugar outside
of the Mediterranean.

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the miracle worker themeswilliam gibson

themes and meanings

(comprehensive guide to drama)

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there are two central themes in  the miracle worker: that the human spirit can triumph over even the most daunting of disabilities and that a dedicated teacher can transform the lives of those with whom he or she comes into contact. these inspirational themes have long been personified in the widely known true-life relationship between helen keller and annie sullivan, but  the miracle worker  also dramatizes collateral issues that extend beyond the particular case. underlying helen’s process of learning basic principles of what annie terms “obedience” (decorum, etiquette, and hygiene), there are more universal lessons of self-governance—the inculcation of self-restraint instead of willfulness, the development of self-discipline instead of self-indulgence. only when these lessons have been mastered can helen begin to acquire language—which, annie says, “is to the mind more than light is to the eye.”

the answer is not b, and i don't think its a, so i choose either man's identity is found within the traditions of his ancestors   or language is a powerful tool, tell me if i was wrong or right by the way