The second one, otherwise it's ambiguous in that that you've got the full stop in the middle of the sentence.
"Punctuate "etc." correctly. At the end of "etc", there should be a period. (This does not apply if you are using modern "open punctuation", which dispenses with periods for eg, ie etc). That's obvious, right? However, when you still have more to say in the sentence, you sh
We don't need a comma before a preposition, but we do when introducing a new clause by a conjunction. I want to say that it's chiefly depended on the expression that comes after 'etc.' which determines we need a comma or not. If we have a (to be/modal) verb or conjunction after 'etc.', we do need a comma between them.