In the question below, a sentence is given, divided into parts which when rearranged will form a logical and coherent sentence. One of the parts does not belong to the sentence. Identify the part that does not belong to the sentence and rearrange the remaining parts to form a meaningful sentence. Choose the option that represents the correct arrangement and mark the options accordingly. 1. aim to provide a secure alternative to volatile private cryptocurrencies 2. the underlying blockchain technology requires massive computational power 3. central bank digital currencies currently under development globally 4. over the sovereign monetary system 5. while simultaneously allowing governments to maintain strict control

(b) is the right answer as 3154 is the correct sequence and part 2 is the odd part. Part 3 establishes the subject of the sentence—central bank digital currencies currently under development. Part 1 follows by stating the primary objective of these currencies—aiming to provide a secure alternative to volatile private cryptocurrencies. Part 5 adds the secondary objective using a conjunction—while simultaneously allowing governments to maintain strict control. Part 4 concludes by specifying what the control is over—the sovereign monetary system. Part 2 is the odd part out as it abruptly discusses the computational power required by blockchain technology, which breaks the contextual flow regarding the economic purpose and government control of digital currencies.