Match column 1 with column 2 and choose the correct option from the given codes     COLUMN 1        COLUMN 2      A.   Mutation   i.   Changes in population's frequencies due to chance alone    B.   Gene flow    ii.   Differences in survival and reproduction among variant individuals   C.   Natural selection   iii.   Immigration, emigration change allele frequencies   D.  Genetic drift   iv.   Source of new alleles

A-i, B-ii, C-iii, D-iv A-iv, B-ii, C-iii, D-i A-iii, B-i, C-iv, D-ii A-iv, B-iii, C-ii, D-i

A-iv, B-iii, C-ii, D-i

COLUMN 1        COLUMN 2      A.   Mutation   iv.   Source of new alleles   B.   Gene flow    iii.   Immigration, emigration change allele frequencies   C.   Natural selection   ii.   Differences in survival and reproduction among variant individuals     D.  Genetic drift   i.   Changes in population's frequencies due to chance alone