Use the four-step method in problem-solving to solve the problem. Andrea decided to rollerblade to her mother's house. Three blocks from her home, one of the wheels on her skate broke, and she had to walk the remaining four blocks to her mother's. She could not repair her skate and had to walk all the way back home. How many more blocks did Andrea walk than she skated?
A) 14 blocks
B) 11 blocks
C) 8 blocks
D) 7 blocks
