If flying height of a spacecraft is H, the length of air base is B and the parallax difference between two points is dp, then the difference in height

If flying height of a spacecraft is H, the length of air base is B and

1.	If flying height of a spacecraft is H, the length of air base is B and the parallax difference between two points is dp, then the difference in height
A.	<img src="/_files/images/civil-engineering/elements-of-remote-sensing/19-27-99-1.png">
B.	<img src="/_files/images/civil-engineering/elements-of-remote-sensing/19-27-99-2.png">
C.	<img src="/_files/images/civil-engineering/elements-of-remote-sensing/19-27-99-3.png">
D.	<img src="/_files/images/civil-engineering/elements-of-remote-sensing/19-27-99-4u.png">
Answer» B. <img src="/_files/images/civil-engineering/elements-of-remote-sensing/19-27-99-2.png">