Which of the following words contains same root as word reduction?

To figure this out, let's break down the word "reduction".

* Root: The root of "reduction" is "duc", meaning "to lead" or "to bring".

* Prefix: The prefix "re-" means "again" or "back".

* Suffix: The suffix "-tion" indicates the act of or state of being.

So, "reduction" means "the act of leading back" or "the state of being led back".

Now let's look at the options and see which one shares the same root:

* Induction: This word uses the root "duc" but with a different prefix ("in-") meaning "in" or "into". This word has the same root.

* Abduction: This word uses the root "duc" but with a different prefix ("ab-") meaning "away from". This word has the same root.

* Deduction: This word uses the root "duc" but with a different prefix ("de-") meaning "down" or "from". This word has the same root.

Therefore, all of the given options contain the same root as "reduction".