Tag usage within links/anchors

Question

Which of the examples is considered to be semantically correct?

1. <a href="http://example.com/"><strong>Example</strong></a>
2. <strong><a href="http://example.com/">Example</a></strong>

Of course applies to any other formatting tag like <u>, <em> etc.

Answer 1

Both are correct. both are inline elements which can contain other inline elements (except there own tag) <strong><strong></strong></strong> is incorrect but any of this list can be used inside of each other.

Answer 2

Both are; both elements are inline elements.