Answer:

I believe, the best answer should be letter B.

Explanation:

If you will pick A as your answer, you beg to disagree with that person, which certainly may show disrespect with his opinion.

If you will pick C, you just stated that you agree with his opinion without explaining which points made you agree with his opinion, showing no interaction between you and the other person.

If you will pick D, it shows redundancy with the words "personally" and "I" since it is the same meaning. Aside from redundancy, saying "I think..." as your opinion shows no conviction, unless you say "I believe..."

If you will pick B, it shows that you are interested to exchange your thoughts to one another by agreeing to one of his points and by also disagreeing with some of his points on the latter part.

Best way to express your opinion is...

"We are one mind on the part where you stated the advantages of same sex marriage to Lgbtq couples, however, I believe, there are some disadvantages if same sex marriage will be legalized such as..."

In that way, you will be able to have a healthy argument.

I hope this helps.

Answer:

The letter D is the one I should use if I want to state my own opinion.

Explanation:

^_^