*$_For laying a sewer line in a trench of 2 m width, an offset line is marked on the ground parallel to the given centre line at a distance of?

*$_For laying a sewer line in a trench of 2 m width, an offset line is

1.	*$_For laying a sewer line in a trench of 2 m width, an offset line is marked on the ground parallel to the given centre line at a distance of?
A.	100 cm
B.	120 cm
C.	140 cm
D.	160 cm
Answer» E.