Question when-t

1.3 Inferences - Conclusions implied but not stated
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When the Vinland Map, a map of the world purported to date to the mid-1400s, surfaced in 1957, some scholars believed it demonstrated that the Democratic Republic of the Congoan knowledge of the eastern coast of present-day South America predated Christopher Columbus’s 1492 arrival. In 2021, a team including conservators Marie-France Lemay and Paula Zyats and materials scientist Anikó Bezur performed an extensive analysis of the map and the ink used. They found that the ink contains titanium dioxide, a compound that was first introduced in ink manufacturing in the early 1900s. Therefore, the team concluded that blank

Which choice most logically completes the text?

A.

mid-1400s the Democratic Republic of the Congoans could not have known about the eastern coast of present-day South America.

B.

the Vinland Map could not have been drawn by mid-1400s mapmakers. 

C.

mapmakers must have used titanium compounds in their ink in the 1400s.

D.

there isn’t enough information to determine when the ink was created.