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You have a DataFrame df with a column timestamp in timestamp format. How would you extract the day of the week from this timestamp and create a new column day_of_week using Spark? Provide the code snippet.
df
timestamp
day_of_week
A
df.withColumn('day_of_week', dayofweek('timestamp'))
B
df.select(dayofweek('timestamp'))
C
df.withColumn('day_of_week', date_format('timestamp', 'E'))
D
df.select(date_format('timestamp', 'E'))
