````yml question: text: | What will the following code print out? ```py import pandas as pd certificates_earned = pd.DataFrame({ 'Certificates': [8, 2, 5, 6], 'Time (in months)': [16, 5, 9, 12] }) names = ['Tom', 'Kris', 'Ahmad', 'Beau'] certificates_earned.index = names longest_streak = pd.Series([13, 11, 9, 7], index=names) certificates_earned['Longest streak'] = longest_streak print(certificates_earned) ``` answers: - | ``` Tom 13 Kris 11 Ahmad 9 Beau 7 Name: Longest streak, dtype: int64 ``` - | ``` Certificates Time (in months) Longest streak Tom 8 16 13 Kris 2 5 11 Ahmad 5 9 9 Beau 6 12 7 ``` - | ``` Certificates Longest streak Tom 8 13 Kris 2 11 Ahmad 5 9 Beau 6 7 ``` solution: 2 ````