Step 1: Understanding the Question:
The task is to identify the grammatical part of speech for the word 'resounding' as it is used in the given sentence.
Step 2: Detailed Explanation:
Let's analyze the sentence structure: "The policy was considered a resounding success..."
The word in question is 'resounding'.
It comes directly before the word 'success'.
'Success' is a noun in this context.
A word that modifies or describes a noun is an adjective.
Here, 'resounding' is describing the noun 'success'. It tells us what kind of success it was – a great, emphatic, or echoing success. Therefore, 'resounding' is functioning as an adjective.
Let's check the other options:
(A) Noun: A noun is a person, place, thing, or idea. 'Resounding' is not a noun in this sentence.
(B) Gerund: A gerund is a verb ending in '-ing' that functions as a noun (e.g., "Swimming is fun."). Here, 'resounding' is not acting as a noun; it is describing one.
(C) Adverb: An adverb modifies a verb, an adjective, or another adverb (e.g., "He ran quickly"). 'Resounding' is not modifying a verb or adverb; it is modifying the noun 'success'.
Step 3: Final Answer:
Since 'resounding' modifies the noun 'success', its part of speech is an adjective.