The answer to your question is C
Ghana used its large army for gaining the obedience of Ghana's neighbors
the traditional pilgrimage to Mecca, through the experience of present-day American Muslims and learn about the origins of Islam in its birthplace of Medina in this media gallery from Sacred Journeys with Bruce Feiler. According to Muslim tradition, all of the world’s able-bodied believers must make the Hajj at least once in their lives. They strip themselves of worldly possessions and ask God’s forgiveness for their human failings. Pilgrims enter a sacred state of spiritual purity and wear plain garments. Then, inside the city’s Great Mosque, they walk in a circle seven times around the Ka’bah shrine.
On the larger islands there may be several different language groups requiring the trader to deal in several languages. On the smaller islands there may be only <span>one language so it is easier to trade with the occupants. (Im sorry if this does not help)
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