AAluminum foil BHuman skin CLead DPaper
Acupuncture, which involves inserting thin needles into various points on your body, may reduce peripheral neuropathy symptoms.
Maybe some geniuses know.
Beta particles are the medium penetrating and medium ionizing particles of the the three radiation typesOf the choices you have, C is the best answerBeta particles can be stopped by several millimeters of aluminum so I do not thing aluminum foil would be too effective in a single layerEDIT: Keep in mind that beta emitters are used in many industries as a quality check on thicknesses of itemspaper products, etcso the particles are attenuated to some extent by such products.
