Which of the following characters are associated with amoeboid protozoa?
a. Causes sleeping sickness.
b. They move and capture their prey by putting out pseudopodia.
c. Marine forms have silica shells on their surface.
d. Some are parasitic.

• A

  a and b

• B

  a, b and c

• C

  b, c and d

• D

  a, c and d