Please help I will upvote if answer is correct :

I remember in class that we talked about when there's more type A, people are willing to pay for the insurance because there are enough type A to keep the price down despite type B trying to increase the price atm and pooling equilibrium happens when the over all expected cost is lower than the expected cost they are willing to pay but tbh I am not sure about the relationship between pooling eq/separating eq and type A/type B so I am stuck