It's true stage directions aren't spoken aloud.
The chronology shows the gradual improvements in bicycle design, as shown in the first answer option.
<h3>What is chronology?</h3>
- It is the order in which events happen.
- It is the organization of events based on the date they occurred.
In the text to which the question is related, we can see that the narrator shows how the design of bicycles has evolved over time, being modified on certain dates to present a more efficient and desirable product.
The text is in the attached figure.
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You can conclude that the speaker Believes that climate change is a serious manner that needs to be addressed immediately with effective measures to insure the best outcome for planet earth and mankind itself.