The image below has the question that needs to be answered and the choices to chose from. I would really appreciate it if someone could answer this question for me . I will also mark brainliest! :)

A

Explanation:

Using process of elimination, I know that this can be decomposition because, to decompose is to break down, while these are clearly forming together. Also B seems to be wrong. It says that the mass will be less, but because we are merging them together the mass should be greater.