Answer:
The correct answer is option 'd':Fluid distribution system
Explanation:
In fluid mechanics 'manifold' is a term used to define a pipe into which many other pipes drain or a pipe which branches into many different smaller pipes.
Manifolds are of many types such as exhaust manifold,hydraulic manifold, inlet manifold ,e.t.c.
Manifolds serve an important purpose as they are used to exhaust the gas from different piston chambers into a single exhaust.
