Refer to the Figure. Some plumbing tees are to be changed to provide a bath tub and second lavatory to a 1/2 bath in a manufactured home. All of these fittings are used in a drainage system. When the change of direction is from the vertical to the horizontal except which one?

Refer to the Figure. Some plumbing tees are to be changed to provide a bath tub and second lavatory to a 1/2 bath in a manufactured home. All of these fittings are used in a drainage system. When the change of direction is from the vertical to the horizontal except which one?