Step 1: Understanding the relationship between the words.
In the pair ASCERTAIN : DISREGARD, "ascertain" means to find out or determine, while "disregard" means to ignore or pay no attention to. These are opposite in meaning, indicating a relationship of opposition.
Step 2: Analyzing the options.
(A) Deceitful: "Deceitful" refers to being dishonest or misleading, but it is not the opposite of "devious," which suggests trickery or hidden motives. This does not form an opposite relationship.
(B) Cunning: "Cunning" is similar to "devious," as it refers to being sly or crafty. However, it does not create an opposite relationship like "ascertain" and "disregard." This is not the correct answer.
(C) Honest: "Honest" is the opposite of "devious," which means being dishonest or deceitful. This fits the same relationship of opposition as "ascertain" and "disregard," where one is the opposite of the other. This is the correct answer.
(D) Murky: "Murky" refers to something unclear or opaque, which is not the opposite of "devious." This option does not match the pattern.
(E) Tricky: "Tricky" is similar to "devious," but it is not the opposite. It describes something that is difficult or complicated, but does not form an opposite relationship to "devious."
Step 3: Conclusion.
The correct answer is (C) Honest, as it is the opposite of "devious," mirroring the opposition between "ascertain" and "disregard."