Think about the article. Which of these is true about chins?

A.Chins could help scientists figure out why humans are like animals.
B.Chins could help scientists figure out why modern humans lived on.
C.Chins have always been good at protecting the jaw.
D.Chins are the small bones that all ancestors have shared.

None of the options are true about chins as none of them accurately represents the content discussed in the article.

The true statement about chins is:

D. Chins are the small bones that all ancestors have shared.

To determine which statement is true about chins, we can analyze the given options and identify the most accurate one. Here are the explanations for each statement:

A. "Chins could help scientists figure out why humans are like animals." This statement suggests that chins may hold clues about the similarities between humans and other animals. To verify this, we need more information about how chins relate to human-animal comparisons. Without further details, it is difficult to determine the truth of this statement.

B. "Chins could help scientists figure out why modern humans lived on." This statement implies that studying chins could provide insights into the reasons why modern humans have persisted. However, without additional context or evidence, it is challenging to affirm the validity of this claim.

C. "Chins have always been good at protecting the jaw." This statement suggests that the primary function of chins has been to protect the jaw. To verify this, one could consult scientific literature, anthropology, or evolutionary biology studies to investigate the role of chins regarding jaw protection. This claim appears to be a reasonable assumption, although it may not provide a comprehensive understanding since the chin's function might have other aspects as well.

D. "Chins are the small bones that all ancestors have shared." This statement proposes that all ancestors possessed chins as small bones. It implies a shared anatomical feature among ancestral beings. However, to know the accuracy of this statement, one would need to explore scientific research on the evolution of chin bones in various species.

In conclusion, without more context or information, it is challenging to determine which statement is true about chins. It is important to conduct further research or refer to credible sources that analyze the topic in depth to obtain a more accurate answer.