Which is correct?

[Fame]

Which is correct?

1. What better way to learn English than sitting in a classroom? Where you can pose questions to your teacher.

2. What better way to learn English than sitting in a classroom, where you can pose questions to your teacher.

[Mister Micawber]

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Only #2. #1 includes a sentence fragment.
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[MikeNewYork]

Which is correct?

1. What better way to learn English than sitting in a classroom? Where you can pose questions to your teacher.

2. What better way to learn English than sitting in a classroom, where you can pose questions to your teacher.

Two fix the first, you would have to invert the subject and verb and add the word "else".

What better way to learn English than sitting in a classroom? Where else can you pose questions to your teacher?