Question

what is the meaning of the word pertain as used in the passage? edgar is studying veterinary medicine at university, so he often reads books and magazines that pertain to animal health issues. articles that relate to the latest medications and treatments available for horses are of particular interest to him, since he plans to be an equine veterinarian—a vet who specializes in the care of horses. to have similar opinions to fit together to have to do with

Explanation:

In the context, articles "pertain to" animal - health issues means they are related to or have to do with animal - health issues. The phrase "to have to do with" best captures this meaning among the options.

Answer:

to have to do with