Study the four statements (A-D) given below and select the two correct ones out of them.
A. Definition of biological species was given by Ernst Mayr.
B. Photoperiod does not affect reproduction in plants.
C. Binomial nomenclature system was given byR.H. Whittaker.
D. In unicellular organisms, reproduction is synonymous with growth.
The two correct statements are

• A

  B and C

• B

  C and D

• C

  A and D

• D

  A and B