The Following Passage Contains an Argument with an Implicit Premise

The following passage contains an argument with an implicit premise and/or conclusion. Identify the best standard-form representation of the argument.
The passage: You should always eat locally-grown food, because eating locally-grown food uses resources in a less environmentally damaging way than imported food.

A) 1) Eating locally grown food uses resources in a less environmentally damaging way than imported food.
2) Sometimes it's better to use resources in a less environmentally damaging way. So, you should always eat locally-grown food.
B) 1) Eating locally-grown food always uses resources in a less environmentally damaging way than imported food.
2) You should use resources in the least environmentally damaging way. So, you should always eat locally grown food.
C) 1) You should always eat locally-grown food.
2) Eating locally grown food uses resources in a less environmentally damaging way than imported food.
So, you should never eat imported food.
D) 1) Eating locally-grown food always uses resources in a less environmentally damaging way than imported food.
So, you should always eat locally grown food.