What is Databricks utilities and how can you use it to list out directories of files from Python cells?
A) Databricks Utilities is a set of Python libraries; use dbutils.fs.ls()
B) Databricks Utilities is a collection of SQL functions; use dbutils.list()
C) Databricks Utilities is a Spark feature; use spark.fs.ls()
D) Databricks Utilities is a Python package; use dbutils.listdirs()