Hyphenation of compound words

Question

When a compound word is hyphenated, should a second hyphen he added at the beginning of the line? And what is the case for compound words connected by a dash instead of a hyphen?

Is one of the following correct, or the proper way is different?

Remark: I'm not sure whether this depends on the traditions of this or that language. My primary interest is English, still if there are differences, I'd like to know about them.

Answer 1

c) is the right way the rest simply doesn't exist check http://www.bestessays.com/splitting_words_guide.php

Answer 2

I've never see anyone do a) or b) ... c) is the way to go. I don't really have a lot of hard evidence to back it up, other than I've never seen the alternatives and InDesign doesn't do it.