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

• A

  B and C

• B

  C and D

• C

  A and D

• D

  A and B