Consider the following costs and determine whether the cost is a) product or period b) variable or fixed c) if product, then direct material, direct labor, or manufacturing overhead?

I did most of them but had a few I wanted checked because I am unsure.

1. Wages of assembly-line personnel of Amana.

a) Product

b) variable

c) DL

2. Plant insurance costs of Levi Strauss

a) product

b) fixed

c) manufacturing overhead

3. Delivery costs on consumer shipments of Ben + Jerry's ice cream

a) period

b) variable

Thanks