It was immature
of him to do that.
Compound word.
Don't mind the "x" and "z" if you look at the included image.
This might help. It is the image.
http://www.enchantedlearning.com/alphabet/wordforeachletter/compoundwords/answerstiny.GIF
Answer:
theme
Explanation:
The other ones don't fit and theme fits that definition
Answer:
A. autoblography . the best answer its correct ;)
Explanation:
good day