An external system has been set up to pass databricks video

Full Certification Question

An external system has been set up to pass the date for a specific batch of data as a parameter to the Databricks Jobs API. The notebook scheduled for execution needs to use this parameter to load data using the following code: df = spark.read.format("parquet").load(f"/mnt/source/(date)") Which code block should be used to define the date Python variable required in this code?