Jim weighed his four dogs, weighing 10.8kg, 13.5kg, 16kg and 14.2kg respectively. What is their total weight? 
选项为:A:$$44.5\text{kg}$$  B:$$53.5\text{kg}$$  C:$$54.5\text{kg}$$  D:$$55.5\text{kg}$$  E:$$56.5\text{kg}$$  请回答其中一个选项.