Schaedler agar is the procedure which is used to culture intracellular bacteria.
This is usually done in the laboratory and it involves maintaining microbes or cells in conditions which are suitable for growth.
Schaedler agar is used in clinical diagnosis to detect various aerobic and anaerobic bacterial species present in the gastrointestinal tract which was why option 1 was chosen.
Read more about Culture here https://brainly.com/question/746877