Mr.John and his wife and two children one 11 and the other 9,will have a tour of Historic Beijing,how much will he pay at least?
| Walking Tours of Beijing |
| Adults |
$5 |
| Students |
$4 |
| Children (under 12) |
$3 |
| Family(2 adults &2 children) |
$13 |
A. $12.
B. $13. C. $16. D. $17.
