Technician a Says a Typical Manifold Absolute Pressure (MAP) Sensor

Multiple Choice

Technician A says a typical Manifold Absolute Pressure (MAP) sensor can be connected directly to the intake manifold or connected through a vacuum hose. Technician B says most modern MAP sensors do not use a flexible silicon chip within a chamber anymore. Who is correct?

A) Technician A
B) Technician B
C) Both A and B
D) Neither A nor B