Choose the answer that best describes the section of an IMRaD paper where you would find the following text:
"As this study was purely qualitative, the data collection instrument used was semi-structured interviews. The researchers designed an interview protocol to serve as guidelines for conducting the interviews. Telephone semi-structured interviews were conducted to obtain meaningful input on the participants’ experiences in blended learning with innovative web-based technologies and the effectiveness of blended learning in enhancing their 21st century skills. The semi-structured interviews involved predesigned open-ended questions prepared by the researchers. Although open-ended questions were prepared before the interview sessions, several new questions emerged during the conversations between the researchers and participants. The telephone interviews were transcribed verbatim and saved as Word files. The interview transcriptions were transferred to NVivo 12 for data management and organization."