Each of the Following Is True About Portable People Meters

Each of the following is true about Portable People Meters (PPMs) EXCEPT:

A) The PPM collects data nationally and in large local markets.
B) The PPM measures on an individual level instead of a household or television basis.
C) The PPM is used to collect television viewing data only.
D) The PPM is also capable of receiving the signal from radio and cinema.