13. Arrange the following bases in order of increasing basicity strength: (1)ammonia,(2)ethylamine, (3)aniline.
(A)(2) < (1) < (3)
(B)(1) < (2) < (3)
(C)(1) <(3) < (2)
(D)(3) < (1) < (2)
(E)(3) < (2) < (1)

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