It has long been thought that humans first crossed a land bridge into the Americas approximately 13,000 years ago. ______ based on radiocarbon dating of samples uncovered in Mexico, a research team recently suggested that humans may have arrived more than 30,000 years ago—much earlier than previously thought.

Question

It has long been thought that humans first crossed a land bridge into the Americas approximately 13,000 years ago. ______ based on radiocarbon dating of samples uncovered in Mexico, a research team recently suggested that humans may have arrived more than 30,000 years ago—much earlier than previously thought.
Which choice completes the text with the most logical transition?
Choose 1 answer:
Choose 1 answer:
(Choice A)   As a result,
A
As a result,
(Choice B)   Similarly,
B
Similarly,
(Choice C)   However,
C
However,
(Choice D)   In conclusion,
D
In conclusion,

GPT-4o mini · Answer

The best choice to complete the text is (Choice C) "However,"

The sentence contrasts the long-held belief about the timing of human arrival in the Americas with the new findings suggesting an earlier arrival. "However" indicates a shift in understanding, making it the most logical transition.