A data engineer is converting their existing data pipeline to use Auto Loader for incremental processing of JSON files. The following code snippet is part of their implementation:

streaming_df = (
    spark
    .readStream
    .format("cloudFiles")
    .______________________
    .option("cloudFiles.schemaLocation", schemaLocation)
    .load(sourcePath)
)

Which of the following code snippets correctly fills the blank to enable the use of Auto Loader for ingesting the data?