
Originally Posted by
thebullfighter
i don't understand What's confusing u guys, but i agree with th Original OA, ie C
ashok, i think u guys are gettin confused by 'THOSE' in the Q.
But, if u try to read th whole para lil carefuly, u'll see tht th author is refrin to Egypt & Mesopotomia when he says, 'THESE regions'.
Similarly, in th Q stem, 'THOSE' refers to Egypt & Mesopotomia and not particularly a specific part of these regions. ie grasslands (or river banks)
& hence, the increasing aridity of formerly fertile
grasslands in Egypt and Mesopotomia caused settlement patterns in
those regions to become more concentrated. (ie, conc. to specific areas or parts of 'those' regions. ie of Egypt and Mesopotomia)
hope tht clears out th confusion.
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