Tamika Starts a Business Making Teddy Bears and Elects to Use

Tamika starts a business making teddy bears and elects to use focus groups to determine whether customized bears would be well received in a hospital setting.The focus groups prove to be unhelpful in answering this question.Which of the following could NOT be a valid explanation?

A) Not enough focus groups were used.
B) Focus groups are not a recommended method for obtaining people's opinions.
C) The people in the focus groups could not relate to a hospitalized child's experience.
D) Responses from focus group members were not recorded accurately.
E) The questions asked were not designed to reveal the information being sought.