How did Fred Ross change Chávez life

What is articulating thoughts and ideas effectively using oral written and non-verbal skills a part of

Bella is going to write a research paper. she chose sports as her topic, but her teacher said she must narrow or limit her topic. choose the topic that limits the broad topic of sports the most. a) a history of sports in the united states b) a history of tennis c) rules and etiquette of tennis d) training and equipment for outdoor sports

Why does the host answer the guest with brief responses during the party?