There are some ducks and chickens in a farm. The number of chickens is $10$ more than ducks.The number of ducks is half the number of chicken. How many ducks and chickens are there in the farm?  ~ 
选项为:A:$26$  B:$$30$$  C:$$33$$  D:$$39$$  E:$$40$$  请回答其中一个选项.