Hey there, thanks for asking a question here on Brainly.
The molecules in a solid cannot change position because the bonds are so powerful. Look at the image below to see a good example of what I mean.
Answer: Letter A ✅
Hope that helps! ★ If you have
further questions about this question or need more help, feel free to comment
below or post another question and send the link to me. -UnicornFudge aka Qamar