You will be less nervous if you speak on a topic with which you have had experience

Sara really admires her friend Janine. Janine speaks with ease in her classroom

presentations and works well with others in teams. Sara pays close attention to Janine's communication patterns and hopes to be as effective as Janine in her own communication someday. Which technique for improving communication competence is Sara using? a. Start with yourself. b. Carefully watch the communication of others. c. Learn about other cultures. d. Learn about your own culture. e. Investigate your family communication patterns.

The best choice of filter for removing just the frequencies of a 60 Hz hum from a recording would be a:

a. notch filter. b. high-pass filter. c. low-pass filter. d. band-pass filter.