Consider the following funnel:

Sessions: $112$

Products in cart: $102$

Proceed to checkout: $98$

Entered shipping information: $93$

Entered payment information: $87$

Completed transaction: $10$

Where should the website focus efforts to increase the conversion rate?

Getting users to place items in the cart.

Getting customers to proceed to checkout after placing items in the cart.

Getting customers to enter shipping information after proceeding to checkout.

Getting customers to complete transaction after entering payment information.