The base price of a product was changed, where can you investigate when the changes occurred?

Which of the following are standard administrative methods for creating products?
Note: There are 2 correct answers to this question.

Which section actions can be enabled when users assemble multi-section Output Documents?
Note: There are 3 correct answers to this question.

Which of the these UI changes can be controlled on the layout tab in Configurable product administration?
Note: There are 3 correct answers to this question.

In a configurable product, pricing is defined both in the product Base price, and also in the price field of some user selected Attribute values. If the user selects an attributes value that has a price, how is the resulting product item price calculated?