Which of the following, if true, would most weaken Shea's hypothesis regarding wood-tipped and stone-tipped spears?

• A. Both spear types are found primarily in coastal regions
• B. Wherever both types of spears are found, only one kind of prey animal is found
• C. Stone-tipped spears were used more frequently than wood-tipped spears
• D. Wood-tipped spears were more effective for long-range hunting

Answer: (B)

To understand why the option stating that wherever both types of spears are found, only one kind of prey animal is found, is the one that most weakens Shea's hypothesis, we need to consider the implications of this statement on the relationship between spear type and hunting effectiveness.

Shea's hypothesis likely suggests that wood-tipped and stone-tipped spears have distinct advantages or uses based on the type of prey being hunted or the hunting conditions present. If it's true that in areas where both spear types coexist, they are associated solely with one kind of prey animal, this suggests that there might be a limitation to the effectiveness or appropriateness of one type of spear over the other based on the prey available, rather than based on the spears' inherent design or material.

This could imply that the species of prey might dictate the choice of spear type, rather than the qualities of the spears themselves. If both spear types are used but are only effective on a single kind of animal, then it weakens any claim about one type of spear being superior to another, as the hunting success could be entirely influenced by external factors, like prey availability.

In contrast, the other options do not challenge Shea's hypothesis to the same extent. For instance, if