The scientific attitude requires an open-minded humility because it involves a willingness to

A) avoid multiple levels of analysis.
B) reject any ideas that can't be scientifically tested.
C) recognize the errors in our own ideas.
D) respect political beliefs that contradict our own.

The scientific attitude involves recognizing that we can make mistakes and being open to accepting any errors in our own ideas. This requires humility and a willingness to be open-minded. Avoiding multiple levels of analysis (A) and rejecting untestable ideas (B) are also important in science, but the emphasis on recognizing one's own errors is key to the scientific attitude. Respect for opposing political beliefs (D) is not directly relevant to the scientific attitude.