Read the following four statements (A-D) -
(A) Both, photophosphorylation and oxidative phosphorylation involve uphill transport of protons across the membrane -
(B) In dicot stems, a new cambium originates from cells of pericycle at the time of secondary growth -
(C) Stamens in flowers of Glorisa and Petunia are polyandrous -
(D)Symbiotic nitrogen-fixers occurs in free-living state also in soil-
How many of the above statements are right?

Options

A. One
B. Two
C. Three
D. Four.

Answer

B