The answer is D. *puts more words in because it has to be 20 letters or more*
Hiya! I just did the test and the answer was They indicate that Nixon had plans for domestic and international improvements. I promise this is the right answer! Take care :)
The most obvious answer I can give is to see someone who you can see is a professional talk about the topic they mastered. i.e a doctor giving you a diagnosis. That is a credible person giving you a credible diagnosis.
I hope this helps in some way.
