In the question below, three sentences are given, each

Solution

1.       (e) 1- We need to replace WITHOUT (in the absence of something) with WITHIN (occurring inside (a particular period of time)). The object of the preposition (LIFETIME) denotes time. 2- We need to replace PERIODICAL (occurring or appearing at intervals; occasional) with RADICAL ((especially of change or action) relating to or affecting the fundamental nature of something). We need an adjective to modify the noun APPROACHES. The sentence talks about tackling a planetary challenge, which cannot be done without urgent action. 3- We need to replace DISTRACTIONS (a thing that prevents someone from concentrating on something else) with DISCUSSIONS (the action or process of talking about something in order to reach a decision or to exchange ideas). We need a noun to be modified by the adjective WIDE-RANGING. The sentence talks about limiting the rise in global temperature. Since BBA is the correct combination, (e) is the right answer.