“I suppose it was inevitable that as my word-base broadened, I could for the first time pick up a book and read and now begin to understand what the book was saying.” (paragraph 7)

Which of the following is the definition for inevitable?

“In my slow, painstaking, ragged handwriting, I copied into my tablet everything printed on that first page, down to the punctuation marks.” (paragraph 3)

Which of the following is the best definition for painstaking?