Select all the choices that decision makers could use marginal analysis for to make effective decisions.
a.) producing another car
b.) consuming one more slice of pizza
c.) adding a machine to the factory
d.) buying an extra concert ticket

Marginal anylasis is thinking at the margin or when right before you will make the choice

A.
producing another car
depends on how fast you can product, I don't think it is very fast, so no

B.
this is marginal thinking, you already have the pizza in front of you

c. same as A, not

D. you are already buying one

B and D