Usually you would add and, or you could add a coma. But make sure you have no words that make no sense
Answer:
Could you provide a section from the text?
Explanation:
The rule is that when the conjunction and is used to connect two independent clauses to create one compound sentence, there should always be a comma before and. Having this in mind, the correct answer is the first choice - The library of congress houses over 147 million items, and it is the largest library in the world.
Helpful or Helpless is the adjective to help