it has long been thought that humans first crossed a land bridge into the americas approximately 13,000…

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: a as a result, b similarly, c however, d in conclusion,

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: a as a result, b similarly, c however, d in conclusion,

Answer

Brief Explanations:

The first sentence states a long - held belief (humans crossed 13,000 years ago). The second sentence presents a new finding (humans may have arrived 30,000 years ago). There is a contrast between the two ideas.

  • “As a result” indicates a cause - effect relationship, which is not the case here.
  • “Similarly” shows similarity, but the two statements are contrasting.
  • “In conclusion” is used to sum up, and this is not a summary situation.
  • “However” is used to show contrast, which fits the logical relationship between the two sentences.

Answer:

C. However,