She was a puzzle.（　）

A:girl B:woman C:mystery D:problem

She was a {{U}}puzzle{{/U}}.

A:girl B:woman C:problem D:mystery

She was a puzzle.

A:girl B:woman C:problem D:mystery

She was a {{U}}puzzle{{/U}}.

A:girl B:woman C:mystery D:problem

She was a {{U}}puzzle{{/U}}.

A:girl B:woman C:problem D:mystery

She was a {{U}}puzzle{{/U}}.

A:girl B:woman C:problem D:mystery