D. I am certain, you will enjoy this class the teacher is excellent
Answer:
The second one because the sentence is proper and the first one is improper
Hope this helps
Base on my research and investigation, an amoeba, often called as amoeboid, is a type of cell organism which has the ability to alter its shape, primarily, by extending and retracting pseudopods. Samadu is not in a biology but a name of a person, I don't what are there connection but I only give you the amoeba.