Which piece of evidence from the text supports the idea that confirmation bias can interfere with relationships?

A
"You interpret neutral behavior as indicative of something negative." ( paragraph 4)
B
"In sum, people are prone to believe what they want to believe. " ( paragraph 7)
C
"The take-home lesson here is to set your hypothesis and look for instances to prove that you are wrong." ( paragraph 8)
D
"The goal is to prevent unbiased witnesses from influencing each other." ( paragraph 9)