Question 4 Which of the following creates a data frame?
import pandas as pd
df = pd.DataFrame(data=['A'={10, 100}, 'Z'={20, 400}])
df = pd.DataFrame(data=['A': [10, 100], 'Z': [20, 400]])
df = pd.DataFrame(data={'A'= [10, 100], 'Z'= [20, 400] })
df = pd.DataFrame(data={'A': [10, 100], 'Z': [20, 400] })