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First determine the governing basis: this is a standard chronological or process sequence. The meaningful order is Write letter → Put in envelope → Affix stamp → Post → Delivery. Converting these terms back to the numbers printed in the question gives 4-3-5-2-1, so option A is correct. Each adjacent link is necessary: Write letter begins the process, Put in envelope follows it, Affix stamp requires the earlier stages, Post comes only after the first three, and Delivery is the natural final stage. Option B is wrong because it incorrectly places Affix stamp before Put in envelope; option C is wrong because it incorrectly places Delivery before Post; and option D is wrong because it incorrectly places Delivery before Post. A correct option must preserve every adjacent relationship, not merely the first or last item. Reading the selected sequence as a complete story confirms that no result precedes its prerequisite and no finishing stage appears prematurely.
FAQ
Common questions and clear answers for this topic.
These questions require arranging objects, events or stages into one meaningful sequence based on time, age, size, production, cause and effect, or a standard process, and then selecting the matching number code.
Identify the definite first and last stages, connect the middle terms through prerequisites, and check every adjacent pair. Write the verbal order first and only then convert it into the printed item numbers.
Common rules include chronological order, youngest-to-oldest, raw material to finished product, smallest-to-largest, administrative procedure, natural cycles and cause-to-effect sequences.
