B.Correlative as or is relating one suggestion to the other
as a student you really need to know how to cook because first of all cooking is easy when you really want to. we need to learn how to cook because we need it when our parents/guardian left us so that we can serve or eat by ourselves by cooking that we know but i know someone well said that it's easy cooking you can just search it or order by online. but remember it can make you have a good meal if you make it by yourself not ordering it.
Correct Statement:
He talked until class was dismissed then all the students poured into the hall.