Which of the Following Is the Best Example of the Behavioral

Which of the following is the best example of the behavioral component of an attitude?

A) Bea feels recycling is a great concept.
B) Bob is upset when he hears a corporation plans to build a polluting plant near his home.
C) Bill struggles to understand the arguments both sides present in a debate over a new manufacturing plant.
D) Betty writes a letter to her senator asking for support of a law making corporations responsible for the pollution they cause.