Not concrete, difficult to define
Answer: D) Influential.
Explanation: The connotation or connotational meaning of a word, is the meaning we give it based on the context that word is in, or the emotions that word cause in the reader, it is the opposite of the denotation or literal meaning of the word. In the given excerpt from "Finding Unity in the Alabama Coal Mines” we can see that the connotation of the word "powerful" is "influential" because it says that the interracial labor union, helped to bridge the racial divide in that state.
