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Refer to the given graph showing relationship between temperature and enzyme action.
Select the correct statement regarding ' \( A \) ' and ' \( B \) '.
(i) 'A' shows rate at which reaction decreases due to denaturation of enzyme molecules.
(ii) ' \( \mathrm{B} \) ' shows rate at which reaction increases due to decreased kinetic energy of substrate.
(iii) As temperature rises, more and more enzyme molecules are denatured and 'A' appears to fall.
(iv) ' \( B \) ' shows rate at which reaction increases due to increased kinetic energy of substrate and enzyme molecules.
(a) (i), (iii) and (iv)
(c) (iii) and (iv) only
(b) (iii) only
(d) (i) and (ii) only
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