Kids 'N' Toys, a Popular Toy Company, Is Conducting Marketing

Kids 'N' Toys, a popular toy company, is conducting marketing research to gauge the response to its new doll, before introducing it to the market on a large scale.The target market for this doll is girls between the ages of four and eight.To conduct the study Kids 'N' Toys selected 100 girls in this age group from various schools in the country and studied their response.The process of selecting these girls from various schools for the study is known as:

A) testing.
B) sampling.
C) hypothesizing.
D) validation.
E) conclusive research.