The correct option is the first option: the similarities in the wording.
When you want to compare passages, you have to focus on similarities between them.
The other options are not correct because the origins of the authors and the dates the texts were written are not relevant when comparing PASSAGES. Moreover, the last option is not correct because it highlights the differences the passages have and the instruction states you should COMPARE the passages. This means doing the exact opposite of spotting differences.
