Answer:
I think D is the best answer
Explanation:
I'm fairly certain it's the first answer but it may be the third answer as well but I believe it's the first more though.
Since an antonym is an opposite, like a synonym is a similar word, the opposite of aggressive would be meek.
In my dictionary (my brain), reckless means causing trouble nonstop. But you should look it up for a more accurate answer.
Hope I helped!
