Solution:'Superlative degree' denotes the form of an adjective or adverb that expresses the highest or a very high degree of quality of a thing, person etc. For example, most, best, worst, greatest, etc.
- However, we always place the definite article 'the' before any superlative adjective.
- Similarly, in the given sentence, we need to use superlative degree.
- Hence, 'The most noisy park party' is the most appropriate answer.