Two whole numbers have a least common multiple of $60$.  -Each number is less than or equal to $12$.  -The greatest common factor of the two number is $2$.  What are the two numbers? 
选项为:A:$6$ and $10$  B:$5$ and $12$  C:$10$ and $12$  D:$12$ and $16$  请回答其中一个选项.