The morphological structure of the word "reactionary" is 2 [Adj [N [V re- [V act]]-ion]-ary].
The word "reactionary" is formed by combining the prefix "re-" (meaning "back" or "again") with the verb "act" to form the base "reaction," which is then suffixed with "-ion" to create the noun "reaction." Finally, the adjective suffix "-ary" is added to create the adjective "reactionary."
So, the morphological structure of the word "reactionary" can be broken down as follows:
"re-" (prefix)
"act" (verb)
"reaction" (noun)
"-ion" (noun suffix)
"-ary" (adjective suffix)
Therefore, the correct structure is 2 [Adj [N [V re- [V act]]-ion]-ary].