Prepare a sketch, using ISA standard symbology for the following flow metering and control scenarios:

a$.$ venturi meter located on pipe A w$/$ digital output, independent field flow indicator, plus centralized indicator in DCS

b$.$ orifice meter located on pipe A w$/$ digital output, fieldbus$-$compatible flow control valve located on pipe B plus centralized indicated in DCS

c$.$ integrated mass flow controller w$/$ digital output located on pipe A plus centralized indicator in DCS