A Standard Manifold Gauge Set Has Three Color Coded Hoses

A standard manifold gauge set has three color coded hoses attached to the manifold. Of the following, identify the INCORRECT statement.

A) The red line will cause the high pressure gauge to read pressure when attached to a source.
B) The blue line will cause the compound gauge to read low pressure or vacuum when attached to a source.
C) The yellow line is the service line and is used for evacuation or to add or remove refrigerant.
D) The green line attaches to the port of the accumulator and will read the systems high pressure.