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: The extreme pressure of the Mariana Trench necessitates (1)/ ancient maritime trading routes primarily focused on coastal navigation (2)/ specially engineered submersibles constructed from (3)/ the crushing forces found at the ocean floor (4)/ titanium spheres that can successfully withstand (5)/

1 begins the sentence by establishing the main subject and the challenge—"The extreme pressure of the Mariana Trench necessitates". 3 continues by telling us what is needed to face this challenge—"specially engineered submersibles constructed from". 5 elaborates on the construction material of the submersibles—"titanium spheres that can successfully withstand". 4 concludes the sentence by detailing exactly what the titanium spheres are withstanding—"the crushing forces found at the ocean floor". Part 2 is the odd part out as it talks about ancient maritime trading routes, which has absolutely no connection to modern deep-sea exploration and submersibles discussed in the other parts.