The correct option is C Waldeyer
The term chromosome was coined by von Waldeyer.
W Flemming introduced the term chromatin.
Sutton proposed that the Mendelian laws of inheritance could be applied to chromosomes at the cellular level of living organisms.
W Roux proposed the "Mosaic" theory of epigenesis, which states that after a few cell divisions the embryo would be like a mosaic, where each cell performs an unique part in the entire design.