Refer to manhole diagram. This structure is which of the following? (This will be a drawing of a manhole 5′ high with a pipe entering at the top turning a 90 degree down to the bottom and the turning 90 degrees to the left to exit the manhole)

Refer to manhole diagram. This structure is which of the following? (This will be a drawing of a manhole 5′ high with a pipe entering at the top turning a 90 degree down to the bottom and the turning 90 degrees to the left to exit the manhole)