Characteristic feature of euglenoids are
A. Presence of cell wall
B. Presence of two flagella
C. Photosynthetic in presence of sunlight
D. Presence of pellicle on their cell
(a) A and D only
(b) $\mathrm{B}$ and $\mathrm{D}$ only
(c) B, C and D only
(d) All of these