Answer:
Option d. The phrase "to dig the channels through which the moral life of his countrymen might flow" is an example of figurative language.
Explanation:
Figurative language is a literary device that uses figures of speech such as metaphors, similes, allusions, alliterations and others in order to give a different meaning to words than its literal one. The phrase "to dig the channels trough which the moral lie of his countrymen might flow" is an example of figurative language as it is not using the literal meaning of "to dig channels" but it is using the concepts as a metaphor.
