Question

the root chron means time. what does the word synchronize mean?
to arrange things in a confusing way
to arrange for things to be moved away
to arrange things to happen at the same moment

Explanation:

The prefix "syn -" means together or same. The root "chron" means time. So "synchronize" means to arrange things to happen at the same time.

Answer:

to arrange things to happen at the same moment