A large magnet. A magnet, regardless of type, is quite heavy. Especially if it's a rather dense one because it'll weight more because of more mass occupying a small space. It's a magnet because of the box's attraction to the steel table rather than concrete. Magnets attract metals instead of concrete.
figurative language goes with "he allows her in church, as well as state, but a subordinate position, claiming apostolic authority for her exclusion from the ministry"
connotative language goes with " he has monopolized nearly all the profitable employments"
technical language goes with " he closes aganist her all the avenues to wealth and distinction"
It would be
A. the dashes Dickinson uses
Hope this helps