Which statement is true for all parallelograms?

Responses
A They always have parallel line segments and perpendicular line segments.They always have parallel line segments and perpendicular line segments.
B They always have parallel line segments and sometimes have perpendicular line segments.They always have parallel line segments and sometimes have perpendicular line segments.
C They always have parallel line segments and never have perpendicular line segments.They always have parallel line segments and never have perpendicular line segments.
D They sometimes have parallel line segments and always have perpendicular line segments.They sometimes have parallel line segments and always have perpendicular line segments.