Some noob questions

Thanks all. Here’s my next question.

I work at one of the big 4 food retailers in the warehouse, taking deliveries, which is where the seed of an idea to become an hgv driver got planted. We get deliveries from hgvs with refridgerated goods in, with in-trailer temps of about 2degreeC. Would a class 2 license let me drive these?

as opposed to the frozen deliveries we get, which are at -22C and these are obviously arctics. i’m near sure these are class ones.