Abiofuel made by fermenting the glucose in corn is called a0.

Corn ethanol is biofuel made by fermenting and distilling the starch (glucose) in corn. Because corn has high starch content, it makes it a good source of biofuels. Corn ethanol can be used as a gasoline additive because it yields a high octane number. 

Ibelieve your answer is b.hope this : )

Your answer is c. explanation: plasma  is the fourth state of matter, derived from the gaseous state of matter.  plasma  can contain free  electrons  and/or  ions. while  plasma is never neutral, it can either be positively or negatively charged.  gases, however, are electrically neutral.