4. In paragraph 7, what is the meaning of the phrase "not easy to swallow"?
OA tough to eat
OB hard to predict
O c difficult to accept
D complicated to solve

In the context of the box model, what is the difference between a margin and a padding? a. a padding lies outside a box border, while a margin lies inside it. b. a padding lies inside a box border, while a margin lies outside it. c. a padding can be adjusted independently, while a margin depends on the size of its box. d. a padding depends on the size of its box, while a margin can be adjusted independently.