Please help me if you know this

Intensive farming: This is when a lot of money and labour is used to farm crops. (They use a lot of pesticides on them)

Extensive farming: This is essentialy the opposite. Extensive farming is where farmers rely on sun, natural fertility of soil, terrain, climate and water.

Subsistence farming/agriculture: This is when farmers grow crops for the sake of their own families and don't sell or trade to other people.

Commercial farming/agriculture: Commercial farming is when people farm for profit, where food is produced for sale in the market. Also very few workers are employed when it comes to commercial farming.

Explanation:

Hope this helps!

just took the test the answer is b.