In advanced English syntax and Determiner Phrase (DP) theory, the distribution, omission, and syntactic co-occurrence of articles, demonstratives, and possessive determiners are governed by strict structural and semantic constraints. Consider the following four advanced propositions regarding determiner usage and article syntax: I. When two or more coordinated singular countable common nouns refer to distinct, separate entities within a single clause, standard grammar dictates that the definite article must be repeated before each noun (e.g., 'The linguistic and the pedagogical perspectives...'), which consequently requires a plural verb agreement, whereas if the nouns denote a single inseparable title, office, or unified entity, the article appears only once with a singular verb. II. In superlative constructions where an adjective or adverb compares an entity with itself across different situations or times (e.g., 'She is most eloquent when she speaks extemporaneously'), the definite article 'the' is omitted and replaced by the zero article or an indefinite modifier because the comparison is non-partitive and adverbial, rather than selecting a single item from a discrete set. III. When a singular countable noun is modified by descriptive adjectives and preceded by intensifying determiners such as 'such', 'what' (in exclamations), or 'many', the indefinite article ('a'/'an') must be positioned after the modifying adjective but before the noun (e.g., *'a such brilliant scholar'*), adhering to rigid pre-nominal DP head-movement rules. IV. In idiomatic coordinate structures involving correlative correlatives or paired opposites representing natural extremes or dual roles (e.g., 'husband and wife', 'from top to bottom', 'left to right'), standard English permits the complete omission of articles, resulting in well-formed bare coordinate noun phrases. Identify the option that correctly evaluates the grammatical, syntactic, and semantic validity of propositions I, II, III, and IV according to standard English grammar and Article (grammar) principles.