Choose the features shown by the alga used by Engelman in his photosynthetic experiments.

A. It has chlorophyll ‘a’ and chlorophyll ‘b’.

B. It has flagellated isogametes

C. It is unicellular alga.

• A

  A and C only

• B

  A and B only

• C

  A, B and C

• D

  B and C only