How do you dispose of bacterial cultures?
a. Broth cultures are left in their tubes, upright, and capped and placed next to the biohazard bin; plate cultures are placed in the biohazard bin
b. Broth cultures are left in their tubes, upright, and capped and placed next to the biohazard bin; plate cultures are placed in the garbage
c. Broth culture tubes are set upright and capped in the biohazard bin; plate cultures are placed in the biohazard bin
d. Broth cultures are flushed down the sink, the empty tubes are upright, capped and placed next to the biohazard bin; plate cultures are placed in the biohazard bin