The most accurate description of the spatial distribution of Islam among the options provided would be 60 percent in Asia, 20 percent in the Middle East, and 15 percent in Africa.
Islam has a significant presence in Asia, particularly in countries like Indonesia, Pakistan, and India. While the Middle East is the birthplace of Islam and has a high concentration of Muslims, the majority of the global Muslim population resides in Asia. This distribution reflects the global demographic spread of Islam.