Which choice best states the main idea of the text?

|Question 10Verbal

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In present-day Chiapas, Mexico, archaeologist Robert Rosenswig, remote-sensing specialist Ricardo Lopez Torrijos, and colleagues have located ~41 smaller settlements surrounding the ancient Mesoamerican city of Izapa. The researchers have concluded that these settlements were culturally linked to Izapa because each of the settlements is the same age and configured in the same manner as Izapa, with a pyramid to the north and a plaza to the south. Their shared structural orientation suggests that residents of the settlements likely performed some of the same cultural ceremonies as residents in Izapa did.

Although archaeologists have learned much about Izapa over years of research, they have only recently found the smaller settlements that surrounded it.

Cultural ceremonies in Izapa seem to have played a more important role for its residents than those in smaller surrounding settlements did.

Researchers have inferred that Izapa was related to the smaller settlements that surrounded it based in part on the similarity of their construction.

Researchers have determined that the arrangement of Izapa's structures was based on those of other nearby settlements.