Which approach to problem solving entails using a group of "experts" who, rather than interacting amongst themselves, repeatedly responds to questionnaires until a fair degree of agreement is achieved?

To increase its customer base, WaterNet, a telecommunications company, launched an offer that provided free monthly text messaging services for its customers. Which age group was the target of WaterNet?

a) Teenagers b) Millennials c) Baby boomers d) Seniors

In what ways does note taking assist listening? How does it serve us "after" a speech? How should one take notes?

What will be an ideal response?