Fill in the blank (_) in the following sentence from the following choices.
Sentence: Benjamin asked Robert to advise them about tourist attractions in Texas because _ was a native Texan.

Choice 1: Benjamin asked Robert to advise them about tourist attractions in Texas because Benjamin was a native Texan.
Choice 2: Benjamin asked Robert to advise them about tourist attractions in Texas because Robert was a native Texan.
Which of the choices is correct? Respond with only "1" or "2" and no additional text.
2
2.