Task: Question Answering
Input (English): Question: A room is 7 meters 20 centimeters in length and 4 meters 32 centimeters in Width. Find the least number of square tiles of equal size required to cover the entire floor of the room.

 Option A: 10

 Option B: 15

 Option C: 17

 Option D: 19

 Option E: 21
Output (English): Option B