In which sentence does the first word of the underlined noun clause function as an adverb?

we were waiting to find out who was the starting pitcher.

the announcer let us know that the rain would force a cancellation of the game.

because of a rain delay, we did not know when the game would start.

whoever would pitch in the game had a tough battle against the best hitters in the league.

  this riddles' answer is library.

  the "leaves" are a reference to the books' pages that the library contains; the branches are a network of libraries that connect multiple libraries' collections, resources, and items in a system of a common database, integrating them; the branches' organization are a useful management tool for coordinating the multiple collections many libraries have.

the correct answer is d. sinking. - apex.

attitude toward the subject implied in a literary work.

serious at times, angry, impassioned, and optimistic, but most of all urgent

in this excerpt, the uniqueness of laura’s speech is revealed by her word usage