Question: A scientist placed a sample of lithium into a container of water. The scientist observed the lithium floating and making a buzzing sound as gas bubbles were forming around it. Which conclusion is best supported by this observation?

  Options: 
 A. A chemical change took place.
 B. The lithium was dissolved by the water.
 C. Dissolved gases were released.
 D. Water was vaporized. 
Answer: A