|Question 21Verbal

Source Texts

Text
When ordering the branches of the Susitna River system, cartographers tend to begin with the riverway's lowest point, the Susitna River. ________ hydrologists begin at the top of the river system, with the Skwentna River and other tributaries fed by the riverway's source, Alaska's Susitna Glacier.
Which choice completes the text with the most logical transition?
For example,
A
In other words,
B
In a similar way,
C
By contrast,
D