Between section 1 and 2 of a pipe a pump, a heater, a very rough pipe and an orifice plate are placed. The Bernoulli equation can be applied between 1 and 2 if

A

Orifice plate and heater are removed

B

Heater pump and heater are removed

C

Heater and pump are removed

D

Heater, rough pipe and orifice plates are removed