Correct option is A
Option (a) is the correct order of the given sentences:
13542.
Explanation of the sequence logically:
·
(1) is fixed: Introduces Singapore and Zurich as the most expensive cities.
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(3) follows: Talks about Zurich and explains why Zurich rose to the top (strength of Swiss Franc, high prices).
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(5) follows naturally after (3): Gives specific reasons for Singapore's position (costly transport and clothing).
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(4) comes next: Mentions New York tied with Singapore in the previous ranking, thus connecting past to present.
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(2) finally explains New York's current situation (slipping to third position).
Why other options are incorrect:
· (b) and (c) mix the ideas about Singapore and New York improperly.
· (d) breaks the logical flow by discussing New York too early before finishing the discussion on Zurich and Singapore.