Producers are whereas consumers are a. autotrophs b. heterotrophs

Producers are (autotrophs) whereas consumers are (heterotrophs)

Producers are autotrophs meaning that they can produce their own food(example: Plants).
Consumers are heterotrophs meaning that they cannot produce their own food. They get their food from other  organisms(example: Owls).

Ihaven't done that yet, so no idea,but this is not the right place to ask

Yes yes yes very good