Dr$.$ Bamaca wants to study middle school experiences. Based on the recruitment strategies discussed in the article, please select the best strategy Dr$.$ Bamaca should consider to connect with the school principal and introduce the study to them.

Dr$.$ Bamaca should first email the school principal to ask them for an appointment.

Have the research lab coordinator visit the school and introduce the research project to the school principal.

Dr$.$ Bamaca should show up to the school in person, introduce herself, and see if the principal is available

All the above strategies are known to be successful in establishing an initial connection.