Farther! Cuz the other options don't make sense grammatically.
Question:
Read the sentence.
Farmers traveled far upstream to find good land, but hunters traveled even _____.
Which form of the underlined modifier correctly completes the sentence?
A: most far
<u><em>B: farther</em></u>
C: farthest
D: more far
Answer:
Explanation: I just got 100% on this test (GradPoint) ;)
That would be a complete thought