This girl has grown up in the time of Siri, a conversation al object presented as an empathy machine- a thing that could understand her. And so it seemed natural to her that other machines would expand the range of conversation But there is something she may have been too young to understand- or, like a lot of us-prone to forget when we talk to machines.

What is the most likely purpose of the dashes in the sentences? •

to set off specific examples
to offer historical information
to introduce new perspectives
to emphasize the point by further clarifying it.