How is a line PQ symbolically written?

1.	How is a line PQ symbolically written?
A.	\[\overline{\text{PQ}}\]
B.	\[\overleftrightarrow{\text{PQ}}\]
C.	\[\overrightarrow{\text{PQ}}\]
D.	\[\overset\frown{PQ}\]
Answer» C. \[\overrightarrow{\text{PQ}}\]

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