Which sentence sounds best

To my ear, C. is the most natural (best sounding) of your group of four.

I'd be more comfortable with it if you put "in the summer" at the beginning instead of at the end.

In the summer, most food quickly goes bad without refrigeration.

As it is, it seems like without refrigeration, we must keep the food til summer, and then it will quickly go bad.

Without a fridge, (you will find that) food goes bad quickly in summer.

AnonymousWithout a fridge, (you will find that) food goes bad quickly in summer.

This version is understood ok, but logically, it can be improved. A 'fridge" is fine but restrictive. "Refridgeration" is better in my opinion because it has a more broad-base meaning.
My preference:

Most foods [will g

What difference would it make if I used the countable "food" (i.e. foods). Isn't it that "foods" means "different kinds of food"?

Cuz in my language, we count "food" according to kind. And in English, there is the countable "food". What does the countable "food" signify?

I just want to reconcile the way food is conceptualized in my country with the way it is in the West.

Another version:

If they are not refrigerated, most foods will quickly spoil in the summer.

Otherwise, I agree with Avangi...

Regards,
A-

lagatawAnd in English, there is the countable "food". What does the countable "food" signify?

It means a type or kind of food (e.g. meat, fruit, baked goods, etc.)

So then, I can use "foods"...cuz that's what I mean.

Thanks a lot guys!

lagataw Which sounds best?A. Without a refrigerator, most food goes bad quickly in (the) summer.B. Without refrigeration, most foods quickly go bad in (the) summer.C. Without refrigeration, most food quickly goes bad in (the) summer.D. Without getting refrigerated, most foods go bad in the summer. You can suggest another version.

I think that C is the right an