Kate and Kerry are two dogs. Every $3$-hour, Kate goes to the dog park. Every $2$-hour, Kerry gos to the dog park. Today, Kate and Kerry first meet at $10:00\text{am}$. When will they meet each other again? 
选项为:A:$12:00\text{pm}$  B:$4:00\text{pm}$  C:$6:00\text{pm}$  D:$10:00\text{pm}$  请回答其中一个选项.