In fluid dynamics, the total pressure is defined as the sum of static pressure (the pressure exerted by a fluid at rest) and velocity pressure (also known as dynamic pressure, which is due to the fluid's motion). This is a fundamental concept in Bernoulli's principle, where total pressure remains constant along a streamline for an inviscid, incompressible fluid. Atmospheric pressure, absolute pressure, and gauge pressure do not account for the velocity component in this context. Thus, the correct answer is Total pressure.