Find the voulme plz i need the answer

Which of the following is not true about using your local library as a resource while doing research? a. searching library catalogs can you narrow your topic, as well as give you ideas about what resources are available to you. b. most libraries now have searchable databases and many other resources accessible online. c. using the library as a resource is a bit more time consuming, because it cannot be done from home. d. all of the above statements are true.

Based on context, the word “insoluble”most likely means?

What sign post goes with the quote goodnight goodnight parting is such sweet sorrow. that i shall say goodnight till it be morrow