Your image isn't clear so I couldn't see the proper option but lucky for you I have seen this question before so I will tell you the answer.
The answer is option D (facilitated diffusion).
Lee Hooke was the scientist that was most likely to study the tadpole cells uner a microscope. So C. is your answer hope this helped!
~Shadow
Euglenas are heterotrophic.
Hererophic (must consume food) and autotrophic (can make its own food).
