Please answer accurately the nanomaterials multiple choice problem and will rate you highly for ACCURACY

6. Link the following phrases: a) Nanoparticles collection b) Management of nanoparticles 1) must be carned out with a respirator PAPR 2) must be used for workers training c) Sampling and nanoparticles monitoring 3) may influence workers exposure in the workplace d) Standard operating procedures 4) should include measurement of background levels