Sentence Correction (SC) | Re: Proof of the popularity of the mobile phone lies in the number of inst

a) ((was)) increased more than 2 times

b) increased by more than 2 times- incorrect because talking about something which has happened last year, better suits with present perfect.

c) ((has)) more than doubled- correct.

d) ((was)) more than doubled- incorrect.

e) ((increase)) by more than double - incorrect.

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