You technically shouldn't postpone the counterclaim and only introduce it in a conclusion or ending point. That wouldn't be effective let alone a good choice if you were supposedly suppose to make someone actually grasp your argument. Besides... A counterclaim is usually presented in the 2 - 3 paragraph and mentioned within a thesis. D is out.
There are various ways to present a counterclaim... I am unsure of what the correct answer would be. I am leaning towards A or B... It's a counterclaim after all.
friendship cause a great effect on the way things work. it keeps balance and peace in life. without it everyone would be upset and annoyed with eachother. you need to be able to focus and not go at each other to learn in a classroom