Hong-bin and Nikita each buy a house. They each make a $100,000 down payment and take out a mortgage for the balance owing, but Hong-bin's house costs twice as much as Nikita's. Which of the following is correct? O a. Hong-bin is using more than twice as much leverage as Nikita. b. Hong-bin is using exactly twice as much leverage as Nikita. O c. Hong-bin is using less than twice as much leverage as Nikita. Chiamaka and Kevin are each buying a house. They each make the same down payment of $100,000 and then take out a mortgage for the balance. Chiamaka's mortgage is twice as much as Kevin's. Which of the following is correct. O a. Chiamaka is using more than twice as much leverage as Kevin. O b. Chiamaka is using exactly twice as much leverage as Kevin. O c. Chiamaka is using less than twice as much leverage as Kevin