The unique subak water management system used to irrigate the rice paddy fields of the Indonesian island of Bali has a rich cultural, philosophical, and historical significance dating back to the ninth century. The many elements of subak—terraces, canals, and water temples—are _________ : they are joined together into a single cohesive unit.

Which choice completes the text with the most logical and precise word or phrase?

The mihrab (or niche) is one of many features that are foundational to traditional mosque architecture and is therefore considered ________ aspect of mosque design. Even mosques that exhibit elements of multiple architectural styles, such as the KH Hasyim Asy’ari Grand Mosque, which incorporates elements from the Betawi and Indonesian Islamic styles, will also include several of these standard features.

Which choice completes the text with the most logical and precise word or phrase?

The Egyptian plover—a bird native to Africa—has a symbiotic relationship with the Nile crocodile. While a crocodile rests on land with its mouth open for extended periods of time, the plover eats the food that is stuck in the crocodile’s teeth. This _________ relationship provides a nutritious meal for the bird and removes potentially dangerous bacteria from the crocodile’s mouth.

Which choice completes the text with the most logical and precise word or phrase?

Until 1917, there was no formal measure in the United States Senate that could be _______ to end a debate that had been excessively prolonged as a tactic to block voting on a matter. In that year, a procedure was created to allow a majority of senators to curtail deliberation and force a vote.

Which choice completes the text with the most logical and precise word or phrase?

The following text is adapted from Akwaeke Emezi’s 2019 novel Pet. Jam is a teenager who lives with her father, Aloe, and her mother, Bitter, who is a painter.

Bitter finished the painting in the dark morning of a day—it was well past midnight when Jam heard the studio door creak open. She stared into the velvet black of her room and listened to her mother’s footsteps walking in her [mother] and Aloe’s bedroom. There was a weight thrumming through the floorboards in a low song, and that was how Jam knew the painting was done. Bitter's feet were singing the news.

Which choice best states the function of the underlined sentence in the text as a whole?