Question

complete the sentence with the word that best fits the overall meaning and tone. the quality of the network drama ________ after the writers introduced too many competing story lines. corroded deteriorated mellowed

Explanation:

"Corroded" is typically used for physical substances, "mellowed" implies a softening or maturing in a positive - connotation sense. "Deteriorated" means to become worse, which fits the context of the network drama's quality declining due to too many competing storylines.

Answer:

deteriorated