A survey about cycling to work was made among two hundred people. According tothe result below, the people who choose cycling because of health and fitness are _______ more than those who choose cycling because of no parking problems.
Health and fitness | No costs | Less pollution | Faster than driving | No parking problems |
? | 30% | 13% | 15% | 12 |
A. 60 B. 72 C. 30