An apple, $2$ pears and a strawberry together weigh $$12$$ pounds. $3$ apples and a strawberry weigh $$10$$ pounds. A pear and a strawberry together weigh $$2$$ pounds more than an apple. How much does an apple weigh? 
选项为:A:$$1$$ pounds  B:$$2$$ pounds  C:$$3$$ pounds  D:$$4$$ pounds  E:$$5$$ pounds  请回答其中一个选项.