|Question 22Verbal

Source Texts

Text
In the early 1920s, researchers at the US Geological Survey determined the geographic center of Texas using a simple method. First, they attached a string to the middle point of a cardboard cutout of the state and suspended it in the air. _blank they adjusted the suspension point until the cutout hung perfectly flat. Ultimately, this point was determined to be the center.
Which choice completes the text with the most logical transition?
Instead,
A
Then,
B
In other words,
C
First of all,
D