Question: Which of the following python command can be used to split 1 0 0 data points, stored in a data frame variable named df ,

Which of the following python command can be used to split 100 data points, stored in a data frame variable named df, completely into 80% training and 20% validation?
Question 1 options:
df_train = df [0:80]
df_test = df[80: 100]
a. df_train = df [0:80]
df_test = df[81: 100]
None of the answers
df_train = df [0:20]
df_test = df[20: ]
a. df_train = df [0:80]
df_test = df[81: 101]

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