Question 15

How long did it take sauropods to grow to full adult size?

The sentence "How long did it take sauropods to grow to full adult size?" would best fit after sentence 9, as it follows the discussion about the growth rates of sauropods and introduces a specific question that aligns with the subsequent information regarding their growth.

A) After sentence 3

Placing the sentence after sentence 3 would be inappropriate because the discussion at that point focuses on the size and survival of sauropods without any reference to their growth rates. The content would not logically connect to the question about the duration of their growth.

B) After sentence 8

This option would also be unsuitable since sentence 8 concludes a discussion on the understanding of sauropod life and adaptation. Inserting the question about growth rates here would disrupt the flow, as it transitions too abruptly from a broader topic to a specific query.

C) After sentence 9

This is the most appropriate placement as sentence 9 introduces the topic of growth rates, which directly relates to the question regarding how long it took sauropods to achieve their full adult size. It creates a logical connection by setting the context for the discussion that follows about the actual rates of growth.

D) After sentence 12

While this option is close, placing the sentence after sentence 12 would be less effective because it would come after a detailed analysis of growth rates rather than introducing the topic. It would feel more like an afterthought rather than a natural lead-in to the following discussion.

Conclusion

The best placement for the sentence is after sentence 9, as it effectively connects to the ongoing discussion about growth rates and allows for a smooth transition into the more detailed analysis that follows. This logical flow underscores the importance of context in understanding how the question about growth duration relates to the information presented.