The answer is the last one because infinitive phrases need a to- with a verb to it like to visit. to was used and visit is a verb because you can visit things like the store, For Example: we went outside to visit the store.
The text structure employed in this passage is: c. Problem and solution.
Problem and solution is one of the several text structures that writers can employ in their writing. A problem is first stated and possible solutions to the problem are presented.
In the passage above, we see that the writer first presented a problem, which is the incessant earthquakes in countries like Japan. He finally provided a solution to the problem.
Learn more about text structures here:
brainly.com/question/12053427
