In the following questions, a sentence is given with a phrase highlighted in bold. The given phrase in bold may contain an error. The options following can replace the incorrect phrase to make the sentence grammatically correct and contextually meaningful. The correct phrase that is to be replaced will be your answer. If the sentence is correct as it is, then select 'No improvement required' as the answer.  The international regulatory committee introduced a series of stringent compliance protocols with a view to mitigate the escalating risks associated with algorithmic high-frequency trading in volatile markets.  

This question tests the correct usage of idiomatic prepositional phrases followed by gerunds. The phrase "with a view to" means "with the hope or intention of doing something." In this specific idiom, the word "to" functions as a preposition, not as a part of an infinitive verb (like "to go" or "to mitigate").  Because "to" is a preposition here, it must be followed by a noun or a gerund (V1 + -ing).  The original bolded phrase uses the base verb "mitigate," which is incorrect.  Option (c) correctly replaces it with the gerund form "mitigating". Option (a) uses the wrong preposition ("for"). Option (b) alters the idiom entirely ("in a view"). Option (d) incorrectly uses the past participle ("mitigated").