I learned this in earth science first it's a metamorphic rock the it goes through the melting process which then it forms magma then another process called solidification takes place and leads to an igneous rock
My inference is that Negi's father wants to spend more time with his daughter. So at this point he is actually being selfish.
"A.Clear Skies" is the correct answer. This phrase is often used to imply that there should be no issue going forward with a certain task or event. It comes from the lingo of pilots and sailors.
it uses a metaphor. but personally i say its a simile but thats why im not a teacher XD