The blank requires an adverb to qualify the adjective 'predictable'. Options (c) and (e) - 'remarkable' (worthy of attention) and 'impressive' (evoking admiration through size, quality, or skill) are adjectives and so they are negated. Option (b) 'closure' (an act or process of closing something, especially an institution, thoroughfare, or frontier, or of being closed) is a noun and so it is also negated. Option (a) 'many' is a determiner and it can quantify a noun, which is not required and so, it is also negated. Option (d) 'more' is an adverb which rightly qualifies the adjective 'predictable' and can thus fill the given blank.
Hence, the correct answer is option (d).
Note:
Qualifiers: A word or phrase that limits the meaning of another word or phrase or makes it less general. 'Adverbs' and 'adjectives' are qualifiers.
Determiner: A modifying word that determines the kind of reference a noun or noun group has, for example, 'a', 'the', 'every', 'much', 'many', etc.
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