One apple, one banana, and two peaches together weigh $12$ lbs. One apple and one peach together weigh $5$ lbs. One banana and $2$ peaches together weigh $5$ lbs more than one apple and one peach weigh together. Each peach weighs the same. How many pounds does one banana weigh? 
选项为:A:$3$ lbs  B:$4$ lbs  C:$5$ lbs  D:$6$ lbs  请回答其中一个选项.