, are the horizontal angles measured at the ends of a base line AB to a hill top whose angle of elevation from station A is . The height of the hill top above the trunnion axis of the theodolite station, is

, are the horizontal angles measured at the ends of a base line AB

1.	, are the horizontal angles measured at the ends of a base line AB to a hill top whose angle of elevation from station A is . The height of the hill top above the trunnion axis of the theodolite station, is
A.	<img src="/_files/images/civil-engineering/surveying/68-3.245-1.png">
B.	<img src="/_files/images/civil-engineering/surveying/68-3.245-2.png">
C.	<img src="/_files/images/civil-engineering/surveying/68-3.245-3.png">
D.	<img src="/_files/images/civil-engineering/surveying/68-3.245-4.png">
Answer» E.