What Is the First Step That Helps in Understanding Another

What is the first step that helps in understanding another culture?

A) Being unaware of practices in other cultures because it makes one biased toward them
B) Realizing that people from another culture may do things differently and it does not make them inferior
C) Avoid asking questions about behavior patterns because it may seem overly curious
D) Understanding that people within a culture are predictable and have identical patterns of behavior
E) Stereotyping groups of people which help understand them and their characteristics better