Q. At which stage of mitosis do you find chromosomes being first visible under the microscope ?

A) Metaphase
B) Telophase
C) Prophase
D) Anaphase

... Answer is C). Prophase

Prophase is a stage of mitosis in which the chromatin condenses (it becomes shorter and fatter) into a highly ordered structure called a chromosome, which becomes visible under a light microscope.