Who was the First Person Acknowledged to Have Seen Living,moving

Question

Who was the first person acknowledged to have seen living,moving cells by using a microscope?  
A) Robert Hooke
B) Robert Brown
C) Galileo Galilee
D) Rudolf Virchow
E) Anton van Leeuwenhoek

Accepted Answer

Anton van Leeuwenhoek was the first person acknowledged to have seen living, moving cells by using a microscope. He discovered bacteria, protozoa, and spermatozoa, and is considered the father of microbiology.