Which of the following barriers to oral communication is not the fault of the sender or receiver?

The barriers to oral communication is the most common called Language. Different countries have different languages, which causes fault to oral communication specially when the sender and the receiver come from different countries. They don't understand each other because they don't have the same language.

B. communication skillscustomer care service specialists are very friendly and know just what to say to people.

True, using a pedometer can promote a physically active lifestyle.