Some WordPress themes that I like don’t have a breadcrumb option. So the next best thing is a plug-in and the one I like is Breadcrumbs Plus.
The first thing to do to use this, after installation, is confirm which file you need to edit and I’ll guess it will be header.php for the theme but it could be somewhere else depending on your theme and where you want the breadcrumb to appear.
Once you know where, just add this section of code to the appropriate file, and magic will happen.
<?php if ( function_exists( ‘breadcrumbs_plus’ ) ) breadcrumbs_plus( array( ‘singular_post_taxonomy’ => ‘category’ ) ); ?>