John is navigating a city grid from his apartment to the gym. The gym is 3 blocks east and 3 blocks north of his apartment. He can only move east or north. However, there is a construction site at the intersection 2 blocks east and 2 blocks north of his apartment, which he must avoid. How many different paths can John take to the gym, taking exactly 6 blocks, and avoiding the construction site?
6
7
8
9
10