The script on a recently discovered scroll was used solely by two scribal communities, the Bethel community and the Shemula community. Analysis of the jar in which the scroll was found, whose markings indicate that it is the scroll’s original container, showed that it was made of clay found in the vicinity of the Bethel community but not of the Shemula community, fifty miles away. This shows that the scroll most likely originated in the Bethel community.
Which of the following is an assumption that the argument makes?
【选项】
The scripts of the two communities are so similar that the origins of some scrolls using those scripts cannot confidently be determined.
选项是否正确？