Explanation: personification is a figure of speech that consists in giving human characteristics to non human objects (or animals), in order to give an example of something. In the given paragraph we can see a clear example of personification in the phrase "When she was done, her calves were screaming in pain" because it says that her calves (non human objects) were screaming in pain (human characteristic).
The only option from this list that shows the appropriate use of apostrophes would be "<span>the witnesses' testimonies" since in this case "witnesses" is plural. </span>
The strength of each charge decides the color of each pixel.
Explanation:
"The strength of each charge decides the color of each pixel. If there is no charge, the pixel will be black. If there is full charge the pixel is white."