We ______ our breakfast when an old man came to the door.

A．People’s preference of one color to another is instinct.
B．People’s preference of one color to another is acquired as they grow up.
C．More people happen to love brown because they saw something brown when they were born.
D．Colors have little influence on our moods.

A．Fine, thank you.
B．The same to you.
C．How do you do
D．I’m a teacher.