Select the correct statements
(a) Roots, stems and leaves respire at rates far lower than animals do.
(b) Diffusion is involved during  respiration in plants.
(c) Distance that gases must diffuse even in large, bulky plants is not great.

• A

  a and b are correct only.

• B

  b and c are correct only.

• C

  a and c are correct only.

• D

  a, b and c are correct