Given below are four statements (A-D) each with one or two blanks. Select the option which correctly fills up the blanks in two statements.
(A) Wings of butterfly and birds look alike and are the results of i evolution.
(B) Miller showed that `CH_(4), H_(2),NH_(3)` and i when exposed to electric discharge in a flask resulted in formation of ii
(C) Vermiform appendix is a i organ and an ii evidence of evolution.
(D) According to Darwin, evolution took place due to i and ii or the fittest.

Options

A. i convergent: i small variation, ii survival
B. i covergent, i oxygen, ii nucleosides
C. i water vapour, ii amino acids: i homologous, ii anatomical
D. i vestigial, ii anatomical: i mutations, ii multiplication.

Answer

A