|Question 1Verbal

Source Texts

Text
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 а single cohesive unit.
Which choice completes the text with the most logical and precise word or phrase?
interconnected
A
outmoded
B
optional
C
informal
D